chunk_id stringlengths 36 36 | source stringclasses 35
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value | document_id stringlengths 36 36 | chunk_index int64 0 324k | retrieved_at stringclasses 2
values | chunker_version stringclasses 4
values | content_hash stringlengths 15 64 | content stringlengths 50 44.7k | namespace stringclasses 9
values | source_name stringclasses 35
values | raw_text stringlengths 50 44.7k | cleaned_text stringlengths 50 44.7k | tags stringclasses 49
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values |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
098167f9-e93c-473a-b951-205c6ff28d07 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/test-driven-development-intro.md | unknown | 5ae4c920-316c-4ebd-a11d-63ece09144ac | 3 | SemanticChunker@1.0.0 | e5e9349e76f0d649986d6824844997ce7e1aa11bfe2e3c4705cc5b363bccf994 | [What is TDD? > Tooling]
I especially like the [`test.each()`](https://vitest.dev/api/#test-each) and [`describe.each()`](https://vitest.dev/api/#describe-each) functions, which allow you to **run the same test with different parameters**, sparing you the hassle of repeating the same assertions over and over again.
`... | unknown | unknown | [What is TDD? > Tooling]
I especially like the [`test.each()`](https://vitest.dev/api/#test-each) and [`describe.each()`](https://vitest.dev/api/#describe-each) functions, which allow you to **run the same test with different parameters**, sparing you the hassle of repeating the same assertions over and over again.
`... | [What is TDD? > Tooling]
I especially like the [`test.each()`](https://vitest.dev/api/#test-each) and [`describe.each()`](https://vitest.dev/api/#describe-each) functions, which allow you to **run the same test with different parameters**, sparing you the hassle of repeating the same assertions over and over again.
`... | code_snippets | ||
118e1f69-0901-4545-9aa5-e1201511bb6c | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/test-driven-development-intro.md | unknown | 5ae4c920-316c-4ebd-a11d-63ece09144ac | 6 | SemanticChunker@1.0.0 | 7b6b96490a776e6347769ead044f58ff9b32b764647c3087ac0274468079241e | [Tooling > Higher confidence]
### Higher confidence
One of the things I noticed as I went through the process was that I was pretty confident about my code. I knew that if I broke something, the tests would catch it. This is a great feeling to have, especially when you're working on a project that you're not entirely... | unknown | unknown | [Tooling > Higher confidence]
### Higher confidence
One of the things I noticed as I went through the process was that I was pretty confident about my code. I knew that if I broke something, the tests would catch it. This is a great feeling to have, especially when you're working on a project that you're not entirely... | [Tooling > Higher confidence]
### Higher confidence
One of the things I noticed as I went through the process was that I was pretty confident about my code. I knew that if I broke something, the tests would catch it. This is a great feeling to have, especially when you're working on a project that you're not entirely... | code_snippets | ||
3070669e-7e4c-4dce-af72-c809138aed8a | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/test-driven-development-intro.md | unknown | 5ae4c920-316c-4ebd-a11d-63ece09144ac | 1 | SemanticChunker@1.0.0 | 2c59b0ed0c03911bafbdf5f9adec08004eff1a32f49284dab2af56ac93fd7848 | [What is TDD?]
## What is TDD?
**Test-Driven Development**, often referred to as TDD, is a **software development methodology** that relies on writing tests before writing the actual code. The idea is to define the desired behavior of the code through tests and then write the code to achieve that behavior. This appro... | unknown | unknown | [What is TDD?]
## What is TDD?
**Test-Driven Development**, often referred to as TDD, is a **software development methodology** that relies on writing tests before writing the actual code. The idea is to define the desired behavior of the code through tests and then write the code to achieve that behavior. This appro... | [What is TDD?]
## What is TDD?
**Test-Driven Development**, often referred to as TDD, is a **software development methodology** that relies on writing tests before writing the actual code. The idea is to define the desired behavior of the code through tests and then write the code to achieve that behavior. This appro... | code_snippets | ||
3cec2930-4ff8-4341-ab64-cfda82a093dc | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/test-driven-development-intro.md | unknown | 5ae4c920-316c-4ebd-a11d-63ece09144ac | 2 | SemanticChunker@1.0.0 | b99e2ce457f219efc2473e3ba15dfc707daaef348f760a63bd5accd5cec855b5 | [What is TDD? > Tooling]
## Tooling
I decided to use [Vitest](https://vitest.dev/) for this project. It's the tool I've settled on, after trying the likes of Jest and Mocha. It feels faster and, in my experience, it's easier to set up and configure than its counterparts.
> [!TIP]
>
> I didn't really have to configur... | unknown | unknown | [What is TDD? > Tooling]
## Tooling
I decided to use [Vitest](https://vitest.dev/) for this project. It's the tool I've settled on, after trying the likes of Jest and Mocha. It feels faster and, in my experience, it's easier to set up and configure than its counterparts.
> [!TIP]
>
> I didn't really have to configur... | [What is TDD? > Tooling]
## Tooling
I decided to use [Vitest](https://vitest.dev/) for this project. It's the tool I've settled on, after trying the likes of Jest and Mocha. It feels faster and, in my experience, it's easier to set up and configure than its counterparts.
> [!TIP]
>
> I didn't really have to configur... | code_snippets | ||
7a18bfb1-75a4-4ef8-8862-a95d3b722020 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/test-driven-development-intro.md | unknown | 5ae4c920-316c-4ebd-a11d-63ece09144ac | 4 | SemanticChunker@1.0.0 | ef0da555c66735776c399eebe2208dbbef1c4980d7c6382bf9d9906ef9223472 | [What is TDD? > Tooling]
describe('hexDigit', () => {
it('should match hex digit', () => {
expect(hexDigit).toMatchString('0');
expect(hexDigit).toMatchString('9');
expect(hexDigit).toMatchString('a');
expect(hexDigit).toMatchString('f');
expect(hexDigit).not.toMatchString('g');
expect(hexDigit).not.toMatchStri... | unknown | unknown | [What is TDD? > Tooling]
describe('hexDigit', () => {
it('should match hex digit', () => {
expect(hexDigit).toMatchString('0');
expect(hexDigit).toMatchString('9');
expect(hexDigit).toMatchString('a');
expect(hexDigit).toMatchString('f');
expect(hexDigit).not.toMatchString('g');
expect(hexDigit).not.toMatchStri... | [What is TDD? > Tooling]
describe('hexDigit', () => {
it('should match hex digit', () => {
expect(hexDigit).toMatchString('0');
expect(hexDigit).toMatchString('9');
expect(hexDigit).toMatchString('a');
expect(hexDigit).toMatchString('f');
expect(hexDigit).not.toMatchString('g');
expect(hexDigit).not.toMatchStri... | code_snippets | ||
b75a44c2-55a9-4506-af45-51bd4a0c6baf | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/test-driven-development-intro.md | unknown | 5ae4c920-316c-4ebd-a11d-63ece09144ac | 5 | SemanticChunker@1.0.0 | 1a6f8db6eb7e6ce6d8fbe59e6380164ccbb2c77ae023f410cd68004d1a677176 | [What is TDD? > Tooling]
It also puts you in the shoes of the user, instead of the library author – a perspective that can be hard to maintain otherwise. This means that you're **evaluating the tool from the perspective of usability**, instead of the traditional viewpoint of minimizing complexity when writing the code... | unknown | unknown | [What is TDD? > Tooling]
It also puts you in the shoes of the user, instead of the library author – a perspective that can be hard to maintain otherwise. This means that you're **evaluating the tool from the perspective of usability**, instead of the traditional viewpoint of minimizing complexity when writing the code... | [What is TDD? > Tooling]
It also puts you in the shoes of the user, instead of the library author – a perspective that can be hard to maintain otherwise. This means that you're **evaluating the tool from the perspective of usability**, instead of the traditional viewpoint of minimizing complexity when writing the code... | code_snippets | ||
c540f7b8-d95f-4e03-90e1-9064ecd0f838 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/test-driven-development-intro.md | unknown | 5ae4c920-316c-4ebd-a11d-63ece09144ac | 8 | SemanticChunker@1.0.0 | 25cc3aac9a38c5594ea9cb15e59506079ff5076fce9c998089889171ffb2b2c3 | [What is TDD? > Takeaways]
## Takeaways
I've been skeptical of TDD for years now, but there's nothing like true hands-on experience to shape one's opinion. Having heard of the benefits before, I can tell you that they're as described on the tin.
_Would I use it again?_ Absolutely. In fact, I think that all my smalle... | unknown | unknown | [What is TDD? > Takeaways]
## Takeaways
I've been skeptical of TDD for years now, but there's nothing like true hands-on experience to shape one's opinion. Having heard of the benefits before, I can tell you that they're as described on the tin.
_Would I use it again?_ Absolutely. In fact, I think that all my smalle... | [What is TDD? > Takeaways]
## Takeaways
I've been skeptical of TDD for years now, but there's nothing like true hands-on experience to shape one's opinion. Having heard of the benefits before, I can tell you that they're as described on the tin.
_Would I use it again?_ Absolutely. In fact, I think that all my smalle... | code_snippets | ||
cdbbe933-acfc-4752-8dac-ae64095575ab | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/test-driven-development-intro.md | unknown | 5ae4c920-316c-4ebd-a11d-63ece09144ac | 0 | SemanticChunker@1.0.0 | e0535618d0f08ceecb7d0dbef99df66ed8e55a9b233f4866072248bd83b66d81 | ---
title: Kickstart a JavaScript project with Test-Driven Development
shortTitle: Test-Driven Development
language: javascript
tags: [webdev,testing]
cover: succulent-5
excerpt: I recently built a project using Test-Driven Development (TDD) and it was a great experience. Here's why I think you should try it, too.
list... | unknown | unknown | ---
title: Kickstart a JavaScript project with Test-Driven Development
shortTitle: Test-Driven Development
language: javascript
tags: [webdev,testing]
cover: succulent-5
excerpt: I recently built a project using Test-Driven Development (TDD) and it was a great experience. Here's why I think you should try it, too.
list... | ---
title: Kickstart a JavaScript project with Test-Driven Development
shortTitle: Test-Driven Development
language: javascript
tags: [webdev,testing]
cover: succulent-5
excerpt: I recently built a project using Test-Driven Development (TDD) and it was a great experience. Here's why I think you should try it, too.
list... | code_snippets | ||
d8ead164-2104-414f-83cf-8e94311ada12 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/test-driven-development-intro.md | unknown | 5ae4c920-316c-4ebd-a11d-63ece09144ac | 7 | SemanticChunker@1.0.0 | 2b4c101b7f1afe00cf22f6bde026c6eca3081276f0a15ce16346b9b14cf3ccd2 | [Tooling > Higher confidence]
This was especially true when one small change in a file broke the entire library at its core and I wouldn't have realized, because it was a pretty subtle mistake relating to spreading arguments in a function call. Ouch! | unknown | unknown | [Tooling > Higher confidence]
This was especially true when one small change in a file broke the entire library at its core and I wouldn't have realized, because it was a pretty subtle mistake relating to spreading arguments in a function call. Ouch! | [Tooling > Higher confidence]
This was especially true when one small change in a file broke the entire library at its core and I wouldn't have realized, because it was a pretty subtle mistake relating to spreading arguments in a function call. Ouch! | code_snippets | ||
f3ac5b9b-f83b-48eb-b5f0-a27b4b979aab | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/test-driven-development-intro.md | unknown | 5ae4c920-316c-4ebd-a11d-63ece09144ac | 9 | SemanticChunker@1.0.0 | aa67d607e142afa51983e8372e9db13076bbed8f006e60666180a41685707002 | [What is TDD? > Conclusion]
## Conclusion
In conclusion, I found that TDD was a great way to write code. It helped me design what I wanted the library to do first, outline use-cases and the API, and gave me confidence in my code. It also made refactoring easier, as I could be sure that I hadn't broken anything.
At t... | unknown | unknown | [What is TDD? > Conclusion]
## Conclusion
In conclusion, I found that TDD was a great way to write code. It helped me design what I wanted the library to do first, outline use-cases and the API, and gave me confidence in my code. It also made refactoring easier, as I could be sure that I hadn't broken anything.
At t... | [What is TDD? > Conclusion]
## Conclusion
In conclusion, I found that TDD was a great way to write code. It helped me design what I wanted the library to do first, outline use-cases and the API, and gave me confidence in my code. It also made refactoring easier, as I could be sure that I hadn't broken anything.
At t... | code_snippets | ||
1372e4e7-e5ba-4370-a6e9-cda699284756 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/this.md | unknown | 5e25958a-9e2b-4631-9642-5540160f69e2 | 4 | SemanticChunker@1.0.0 | 5d209dd31ca0e6fb9fbb4f2eb3557142a1b3707681c0c10fddddcfdde71ccd8d | [What is `this`? > Arrow function context]
## Arrow function context
In arrow functions, `this` retains the value of the enclosing lexical context's `this`.
```js
const f = () => this;
console.log(f() === window); // true
const obj = {
foo: function() {
const baz = () => this;
return baz();
},
bar: () => this... | unknown | unknown | [What is `this`? > Arrow function context]
## Arrow function context
In arrow functions, `this` retains the value of the enclosing lexical context's `this`.
```js
const f = () => this;
console.log(f() === window); // true
const obj = {
foo: function() {
const baz = () => this;
return baz();
},
bar: () => this... | [What is `this`? > Arrow function context]
## Arrow function context
In arrow functions, `this` retains the value of the enclosing lexical context's `this`.
```js
const f = () => this;
console.log(f() === window); // true
const obj = {
foo: function() {
const baz = () => this;
return baz();
},
bar: () => this... | code_snippets | ||
1ab475b6-13e3-477c-8192-d3e9f59165a5 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/this.md | unknown | 5e25958a-9e2b-4631-9642-5540160f69e2 | 3 | SemanticChunker@1.0.0 | 9169822c867d08654de56c94d215130fdd14596e9a77b109b33bd520ecefdc90 | [What is `this`? > Object context]
## Object context
When a function is called as a method of an object, `this` refers to the object the method is called on. This applies to methods defined anywhere in the object's prototype chain (i.e. own and inherited methods).
```js
const obj = {
f: function() {
return this;
... | unknown | unknown | [What is `this`? > Object context]
## Object context
When a function is called as a method of an object, `this` refers to the object the method is called on. This applies to methods defined anywhere in the object's prototype chain (i.e. own and inherited methods).
```js
const obj = {
f: function() {
return this;
... | [What is `this`? > Object context]
## Object context
When a function is called as a method of an object, `this` refers to the object the method is called on. This applies to methods defined anywhere in the object's prototype chain (i.e. own and inherited methods).
```js
const obj = {
f: function() {
return this;
... | code_snippets | ||
2f3cfcc2-25fc-48fd-a321-e5ce663e9492 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/this.md | unknown | 5e25958a-9e2b-4631-9642-5540160f69e2 | 1 | SemanticChunker@1.0.0 | d8ce9a5b50215f0cae389dc171fcb799bf2eaad29db4c27dae519fbd04a14279 | [What is `this`?]
## What is `this`?
In JavaScript, the `this` keyword refers to the object that is currently executing the code. The short version of what `this` evaluates to is as follows:
- By default, `this` refers to the global object.
- In a function, when not in strict mode, `this` refers to the global object... | unknown | unknown | [What is `this`?]
## What is `this`?
In JavaScript, the `this` keyword refers to the object that is currently executing the code. The short version of what `this` evaluates to is as follows:
- By default, `this` refers to the global object.
- In a function, when not in strict mode, `this` refers to the global object... | [What is `this`?]
## What is `this`?
In JavaScript, the `this` keyword refers to the object that is currently executing the code. The short version of what `this` evaluates to is as follows:
- By default, `this` refers to the global object.
- In a function, when not in strict mode, `this` refers to the global object... | code_snippets | ||
2fa911de-d8f7-40d2-b045-60cd8b2ec5f2 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/this.md | unknown | 5e25958a-9e2b-4631-9642-5540160f69e2 | 5 | SemanticChunker@1.0.0 | fb0eb2175938c95b55ac2140b21b4fadda0bea049c5e3497396eeeda58b568d6 | [What is `this`? > Event handler context]
## Event handler context
When used in an event handler, `this` refers to the element on which the listener is placed.
```js
const el = document.getElementById('my-el');
el.addEventListener('click', function() {
console.log(this === el); // true
});
``` | unknown | unknown | [What is `this`? > Event handler context]
## Event handler context
When used in an event handler, `this` refers to the element on which the listener is placed.
```js
const el = document.getElementById('my-el');
el.addEventListener('click', function() {
console.log(this === el); // true
});
``` | [What is `this`? > Event handler context]
## Event handler context
When used in an event handler, `this` refers to the element on which the listener is placed.
```js
const el = document.getElementById('my-el');
el.addEventListener('click', function() {
console.log(this === el); // true
});
``` | code_snippets | ||
3c8a152a-8392-4e72-8bee-fd99eb7d8479 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/this.md | unknown | 5e25958a-9e2b-4631-9642-5540160f69e2 | 6 | SemanticChunker@1.0.0 | 4cb1e6b9d3c791a6913c6c37a0809a87fa6d332588ed5b7d860b831eb2505293 | [What is `this`? > Binding `this`]
## Binding `this`
Using `Function.prototype.bind()` returns a new function from an existing one, where `this` is permanently bound to the first argument of `bind()`.
```js
function f() {
return this.foo;
}
const x = f.bind({foo: 'hello'});
console.log(x()); // 'hello'
```
Simila... | unknown | unknown | [What is `this`? > Binding `this`]
## Binding `this`
Using `Function.prototype.bind()` returns a new function from an existing one, where `this` is permanently bound to the first argument of `bind()`.
```js
function f() {
return this.foo;
}
const x = f.bind({foo: 'hello'});
console.log(x()); // 'hello'
```
Simila... | [What is `this`? > Binding `this`]
## Binding `this`
Using `Function.prototype.bind()` returns a new function from an existing one, where `this` is permanently bound to the first argument of `bind()`.
```js
function f() {
return this.foo;
}
const x = f.bind({foo: 'hello'});
console.log(x()); // 'hello'
```
Simila... | code_snippets | ||
92029363-a1eb-4d6c-b3a1-bccbcd36e4fc | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/this.md | unknown | 5e25958a-9e2b-4631-9642-5540160f69e2 | 2 | SemanticChunker@1.0.0 | 259ba8f6e0010416070db27c86576b112dc62e139558dcf88dee5d771f173887 | [What is `this`? > Function context]
## Function context
When not in strict mode, a function's `this` refers to the global object.
```js
function f() {
return this;
}
console.log(f() === window); // true
```
When in strict mode, a function's `this` will be `undefined` if not set when entering the execution contex... | unknown | unknown | [What is `this`? > Function context]
## Function context
When not in strict mode, a function's `this` refers to the global object.
```js
function f() {
return this;
}
console.log(f() === window); // true
```
When in strict mode, a function's `this` will be `undefined` if not set when entering the execution contex... | [What is `this`? > Function context]
## Function context
When not in strict mode, a function's `this` refers to the global object.
```js
function f() {
return this;
}
console.log(f() === window); // true
```
When in strict mode, a function's `this` will be `undefined` if not set when entering the execution contex... | code_snippets | ||
9c72c073-2cd3-401d-8a44-670f7f6920d4 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/this.md | unknown | 5e25958a-9e2b-4631-9642-5540160f69e2 | 0 | SemanticChunker@1.0.0 | 5983886983e16ddde1ef31b814360dcae07a03a6c3de03c785f64e4206adeb30 | ---
title: Understanding the "this" keyword in JavaScript
shortTitle: The "this" keyword in JavaScript
language: javascript
tags: [function,object]
cover: u-got-this
excerpt: JavaScript's `this` keyword can confuse beginners and veterans alike. Learn how it works in different scenarios and start using it correctly.
lis... | unknown | unknown | ---
title: Understanding the "this" keyword in JavaScript
shortTitle: The "this" keyword in JavaScript
language: javascript
tags: [function,object]
cover: u-got-this
excerpt: JavaScript's `this` keyword can confuse beginners and veterans alike. Learn how it works in different scenarios and start using it correctly.
lis... | ---
title: Understanding the "this" keyword in JavaScript
shortTitle: The "this" keyword in JavaScript
language: javascript
tags: [function,object]
cover: u-got-this
excerpt: JavaScript's `this` keyword can confuse beginners and veterans alike. Learn how it works in different scenarios and start using it correctly.
lis... | code_snippets | ||
19cbdbcc-d64f-4f71-8f0c-c7a45418c72f | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/typecheck-proxy.md | unknown | 119b7cec-a3d3-4310-b0af-c1e0086a9ad3 | 1 | SemanticChunker@1.0.0 | 273b83cd91b06a163d9adbf22091b948c7996c2ef5754b525c1fea117aa585c5 | ```js
const createShapeCheckerProxy = (types, shape) => {
const validProps = Object.keys(shape);
const handler = {
set(target, prop, value) {
if (!validProps.includes(prop)) return false;
const validator = types[shape[prop]];
if (!validator || typeof validator !== 'function') return false;
if (!validator(value))... | unknown | unknown | ```js
const createShapeCheckerProxy = (types, shape) => {
const validProps = Object.keys(shape);
const handler = {
set(target, prop, value) {
if (!validProps.includes(prop)) return false;
const validator = types[shape[prop]];
if (!validator || typeof validator !== 'function') return false;
if (!validator(value))... | ```js
const createShapeCheckerProxy = (types, shape) => {
const validProps = Object.keys(shape);
const handler = {
set(target, prop, value) {
if (!validProps.includes(prop)) return false;
const validator = types[shape[prop]];
if (!validator || typeof validator !== 'function') return false;
if (!validator(value))... | code_snippets | ||
69c2c072-edff-425e-b23b-f7ef7bb7f56e | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/typecheck-proxy.md | unknown | 119b7cec-a3d3-4310-b0af-c1e0086a9ad3 | 0 | SemanticChunker@1.0.0 | 6c3b4d9a8d57dc568b838162afea6d58a927daecf8796b5406a15c7a7730117b | ---
title: Typechecking objects with Proxy in JavaScript
shortTitle: Object type checking with Proxy
language: javascript
tags: [proxy,type]
cover: customs
excerpt: Learn how to type check objects at runtime using the powerful Proxy object in JavaScript.
listed: true
dateModified: 2023-04-23
---
A while back, I was wo... | unknown | unknown | ---
title: Typechecking objects with Proxy in JavaScript
shortTitle: Object type checking with Proxy
language: javascript
tags: [proxy,type]
cover: customs
excerpt: Learn how to type check objects at runtime using the powerful Proxy object in JavaScript.
listed: true
dateModified: 2023-04-23
---
A while back, I was wo... | ---
title: Typechecking objects with Proxy in JavaScript
shortTitle: Object type checking with Proxy
language: javascript
tags: [proxy,type]
cover: customs
excerpt: Learn how to type check objects at runtime using the powerful Proxy object in JavaScript.
listed: true
dateModified: 2023-04-23
---
A while back, I was wo... | code_snippets | ||
dea1eb1e-a84b-4c95-94dd-bde6c106662b | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/typecheck-proxy.md | unknown | 119b7cec-a3d3-4310-b0af-c1e0086a9ad3 | 2 | SemanticChunker@1.0.0 | c836191e0362c9d7a52efc12c73b751e24a95cbd6438c5ea26bfdb7314473f41 | As you can see, `createShapeCheckerProxy` can be used with a plain object to create a reusable function that wraps an object with a type checking `Proxy`. The defined `types` are used to typecheck individual properties and could be extended to support more complex types and special rules. Overall, this can be a pretty ... | unknown | unknown | As you can see, `createShapeCheckerProxy` can be used with a plain object to create a reusable function that wraps an object with a type checking `Proxy`. The defined `types` are used to typecheck individual properties and could be extended to support more complex types and special rules. Overall, this can be a pretty ... | As you can see, `createShapeCheckerProxy` can be used with a plain object to create a reusable function that wraps an object with a type checking `Proxy`. The defined `types` are used to typecheck individual properties and could be extended to support more complex types and special rules. Overall, this can be a pretty ... | code_snippets | ||
45656139-9552-4e64-8293-416987e27dcb | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/truthy-falsy-values.md | unknown | 5f547d6b-29cb-4de5-92bb-ef83560be86c | 0 | SemanticChunker@1.0.0 | ed34aa23ae97b088a2d99c7b757e889d0dfdcdf0b6f040abb075476f21a81eb5 | ---
title: What are truthy and falsy values in JavaScript?
shortTitle: Truthy and falsy values
language: javascript
tags: [type,comparison]
cover: little-bird
excerpt: JavaScript uses type coercion in Boolean contexts, resulting in truthy or falsy values. Get a hang of how it all works in this quick guide.
listed: true... | unknown | unknown | ---
title: What are truthy and falsy values in JavaScript?
shortTitle: Truthy and falsy values
language: javascript
tags: [type,comparison]
cover: little-bird
excerpt: JavaScript uses type coercion in Boolean contexts, resulting in truthy or falsy values. Get a hang of how it all works in this quick guide.
listed: true... | ---
title: What are truthy and falsy values in JavaScript?
shortTitle: Truthy and falsy values
language: javascript
tags: [type,comparison]
cover: little-bird
excerpt: JavaScript uses type coercion in Boolean contexts, resulting in truthy or falsy values. Get a hang of how it all works in this quick guide.
listed: true... | code_snippets | ||
85bfc677-003b-48a2-8558-9dad565b0773 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-bipartite-coloring.md | unknown | 4bbe7f32-45f5-44cc-b8c9-e69f54151962 | 2 | SemanticChunker@1.0.0 | 4425d8e9f66668f0f76bbde6ab9a3d54eda247354405ff9de593c8f371041eb3 | [Bipartite coloring > Implementation]
## Implementation
To implement bipartite coloring, we can use a simple **DFS or BFS traversal algorithm**. We'll maintain a `colors` map to store the color of each node as we traverse the tree. I prefer using BFS for this task, as it allows us to color the nodes level by level.
... | unknown | unknown | [Bipartite coloring > Implementation]
## Implementation
To implement bipartite coloring, we can use a simple **DFS or BFS traversal algorithm**. We'll maintain a `colors` map to store the color of each node as we traverse the tree. I prefer using BFS for this task, as it allows us to color the nodes level by level.
... | [Bipartite coloring > Implementation]
## Implementation
To implement bipartite coloring, we can use a simple **DFS or BFS traversal algorithm**. We'll maintain a `colors` map to store the color of each node as we traverse the tree. I prefer using BFS for this task, as it allows us to color the nodes level by level.
... | code_snippets | ||
96723266-2975-4085-b729-a22ab6510d1d | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-bipartite-coloring.md | unknown | 4bbe7f32-45f5-44cc-b8c9-e69f54151962 | 1 | SemanticChunker@1.0.0 | 7a700dd478be7997f25f4dbe7d679c4c371c59909e37b22e5f3c60af493b516d | [Bipartite coloring]
## Bipartite coloring
Bipartite coloring is a way of coloring the nodes of a graph such that **no two adjacent nodes share the same color**. In the case of an undirected tree, this means that **each level of the tree can be colored with a different color**, ensuring that no two adjacent nodes (pa... | unknown | unknown | [Bipartite coloring]
## Bipartite coloring
Bipartite coloring is a way of coloring the nodes of a graph such that **no two adjacent nodes share the same color**. In the case of an undirected tree, this means that **each level of the tree can be colored with a different color**, ensuring that no two adjacent nodes (pa... | [Bipartite coloring]
## Bipartite coloring
Bipartite coloring is a way of coloring the nodes of a graph such that **no two adjacent nodes share the same color**. In the case of an undirected tree, this means that **each level of the tree can be colored with a different color**, ensuring that no two adjacent nodes (pa... | code_snippets | ||
d7dcbbd5-6f9e-4088-8a68-b6ccda048407 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-bipartite-coloring.md | unknown | 4bbe7f32-45f5-44cc-b8c9-e69f54151962 | 0 | SemanticChunker@1.0.0 | 3579b408c4a6d5ea9cc126df5fe75ed69fa134105eaf88acfa3b6a4548107899 | ---
title: How can I apply bipartite coloring to an undirected tree in JavaScript?
shortTitle: Undirected tree bipartite coloring
language: javascript
tags: [algorithm,array]
cover: laptop-notes
excerpt: Learn how to apply bipartite coloring to an undirected tree in JavaScript, ensuring that no two adjacent nodes share... | unknown | unknown | ---
title: How can I apply bipartite coloring to an undirected tree in JavaScript?
shortTitle: Undirected tree bipartite coloring
language: javascript
tags: [algorithm,array]
cover: laptop-notes
excerpt: Learn how to apply bipartite coloring to an undirected tree in JavaScript, ensuring that no two adjacent nodes share... | ---
title: How can I apply bipartite coloring to an undirected tree in JavaScript?
shortTitle: Undirected tree bipartite coloring
language: javascript
tags: [algorithm,array]
cover: laptop-notes
excerpt: Learn how to apply bipartite coloring to an undirected tree in JavaScript, ensuring that no two adjacent nodes share... | code_snippets | ||
39ff1965-cb89-4102-9a50-c9ffd1b7ba0a | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undeclared-undefined-null.md | unknown | 2dd812af-8b47-4df2-b9c2-dfd845161cf6 | 2 | SemanticChunker@1.0.0 | 79797d87f48e4e2800f0897a105d1b44996bad7e9eb7df1c12e24af9d1a55cfd | [undeclared > undefined]
## undefined
A variable is `undefined` if it hasn't been assigned a value. `undefined` is a primitive data type in JavaScript and represents the absence of a value, intentional or otherwise.
```js
let x;
console.log(x); // undefined
``` | unknown | unknown | [undeclared > undefined]
## undefined
A variable is `undefined` if it hasn't been assigned a value. `undefined` is a primitive data type in JavaScript and represents the absence of a value, intentional or otherwise.
```js
let x;
console.log(x); // undefined
``` | [undeclared > undefined]
## undefined
A variable is `undefined` if it hasn't been assigned a value. `undefined` is a primitive data type in JavaScript and represents the absence of a value, intentional or otherwise.
```js
let x;
console.log(x); // undefined
``` | code_snippets | ||
6526f0c2-b77a-4413-b6e9-b11ccf2ac035 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undeclared-undefined-null.md | unknown | 2dd812af-8b47-4df2-b9c2-dfd845161cf6 | 1 | SemanticChunker@1.0.0 | 3776a085dba6d3dbc5def7832634d3a22853756a11ccbf84876d2421405c66b7 | [undeclared]
## undeclared
A variable is undeclared if it has not been declared with an appropriate keyword (i.e. `var`, `let` or `const`). Accessing an undeclared variable will throw a `ReferenceError`.
```js
console.log(x); // ReferenceError: x is not defined
``` | unknown | unknown | [undeclared]
## undeclared
A variable is undeclared if it has not been declared with an appropriate keyword (i.e. `var`, `let` or `const`). Accessing an undeclared variable will throw a `ReferenceError`.
```js
console.log(x); // ReferenceError: x is not defined
``` | [undeclared]
## undeclared
A variable is undeclared if it has not been declared with an appropriate keyword (i.e. `var`, `let` or `const`). Accessing an undeclared variable will throw a `ReferenceError`.
```js
console.log(x); // ReferenceError: x is not defined
``` | code_snippets | ||
858167d2-f4be-482f-acba-8d15cfd3c557 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undeclared-undefined-null.md | unknown | 2dd812af-8b47-4df2-b9c2-dfd845161cf6 | 4 | SemanticChunker@1.0.0 | 306bf6d73844f26507d0e1c5827c7595239d8e2ef376e92459e9790182129fbf | [undeclared > Checking for empty states]
## Checking for empty states
Undeclared variables will throw an error, which makes them easy to spot and are not very common anyways. `undefined` and `null` can be easily spotted with a conditional as they are both falsy values. Due to that, `null` and `undefined` are loosely ... | unknown | unknown | [undeclared > Checking for empty states]
## Checking for empty states
Undeclared variables will throw an error, which makes them easy to spot and are not very common anyways. `undefined` and `null` can be easily spotted with a conditional as they are both falsy values. Due to that, `null` and `undefined` are loosely ... | [undeclared > Checking for empty states]
## Checking for empty states
Undeclared variables will throw an error, which makes them easy to spot and are not very common anyways. `undefined` and `null` can be easily spotted with a conditional as they are both falsy values. Due to that, `null` and `undefined` are loosely ... | code_snippets | ||
bc2216b8-0610-430e-be5e-9379ac8448c8 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undeclared-undefined-null.md | unknown | 2dd812af-8b47-4df2-b9c2-dfd845161cf6 | 0 | SemanticChunker@1.0.0 | a0087e34286f5fb9614b796cd59633dc07bb2dc7299c51d89aeb98d470cb2944 | ---
title: What's the difference between undeclared, undefined and null in JavaScript?
shortTitle: Undeclared, undefined and null
language: javascript
tags: [type]
cover: river-houses
excerpt: JavaScript has three different empty states for variables. Learn their differences and how you can check for each one.
listed: ... | unknown | unknown | ---
title: What's the difference between undeclared, undefined and null in JavaScript?
shortTitle: Undeclared, undefined and null
language: javascript
tags: [type]
cover: river-houses
excerpt: JavaScript has three different empty states for variables. Learn their differences and how you can check for each one.
listed: ... | ---
title: What's the difference between undeclared, undefined and null in JavaScript?
shortTitle: Undeclared, undefined and null
language: javascript
tags: [type]
cover: river-houses
excerpt: JavaScript has three different empty states for variables. Learn their differences and how you can check for each one.
listed: ... | code_snippets | ||
d22d6680-61f1-48d9-8c54-2f3e424fc0d1 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undeclared-undefined-null.md | unknown | 2dd812af-8b47-4df2-b9c2-dfd845161cf6 | 3 | SemanticChunker@1.0.0 | 3050e0ff4e6bc3828fc84783c4f38db33d7f24f28bba1bf2172facb2638f2719 | [undeclared > null]
## null
A variable is assigned a value of `null` like any other value. `null` is also primitive data type in JavaScript and always represents the intentional absence of a value.
```js
let x = null;
console.log(x); // null
``` | unknown | unknown | [undeclared > null]
## null
A variable is assigned a value of `null` like any other value. `null` is also primitive data type in JavaScript and always represents the intentional absence of a value.
```js
let x = null;
console.log(x); // null
``` | [undeclared > null]
## null
A variable is assigned a value of `null` like any other value. `null` is also primitive data type in JavaScript and always represents the intentional absence of a value.
```js
let x = null;
console.log(x); // null
``` | code_snippets | ||
165ed050-0136-48a5-8136-3d87af1a626b | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/typecheck-nodejs-streams.md | unknown | 7d46f59b-4005-448d-97ed-0aa6253eb225 | 1 | SemanticChunker@1.0.0 | ab6ba43e83481e69051d512abc8ef139b346d2afbf858d22c8662c675b09fc15 | [Check if value is a stream]
## Check if value is a stream
In the most general case, we can check if a value is a stream by checking if it is an **object** and has a `pipe` property that is a function.
```js
import { createReadStream } from 'fs';
const isStream = val =>
val !== null && typeof val === 'object' && t... | unknown | unknown | [Check if value is a stream]
## Check if value is a stream
In the most general case, we can check if a value is a stream by checking if it is an **object** and has a `pipe` property that is a function.
```js
import { createReadStream } from 'fs';
const isStream = val =>
val !== null && typeof val === 'object' && t... | [Check if value is a stream]
## Check if value is a stream
In the most general case, we can check if a value is a stream by checking if it is an **object** and has a `pipe` property that is a function.
```js
import { createReadStream } from 'fs';
const isStream = val =>
val !== null && typeof val === 'object' && t... | code_snippets | ||
17c62b0f-7c69-4398-95c6-8092d084fe3c | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/typecheck-nodejs-streams.md | unknown | 7d46f59b-4005-448d-97ed-0aa6253eb225 | 2 | SemanticChunker@1.0.0 | 527a83e752e3eb701acbc02ce5aadd22c762d8a8b87519e9ee1b792bd50081d5 | [Check if value is a stream > Check if value is a readable stream]
## Check if value is a readable stream
A [readable stream](https://nodejs.org/api/stream.html#readable-streams) needs to have a `_read` function and a `_readableState` object. This is in addition to the general stream check, defined previously.
```js... | unknown | unknown | [Check if value is a stream > Check if value is a readable stream]
## Check if value is a readable stream
A [readable stream](https://nodejs.org/api/stream.html#readable-streams) needs to have a `_read` function and a `_readableState` object. This is in addition to the general stream check, defined previously.
```js... | [Check if value is a stream > Check if value is a readable stream]
## Check if value is a readable stream
A [readable stream](https://nodejs.org/api/stream.html#readable-streams) needs to have a `_read` function and a `_readableState` object. This is in addition to the general stream check, defined previously.
```js... | code_snippets | ||
6a3b3e8a-57f2-43f4-bf73-f57a2bbcae3a | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/typecheck-nodejs-streams.md | unknown | 7d46f59b-4005-448d-97ed-0aa6253eb225 | 3 | SemanticChunker@1.0.0 | 064321f6fdf5db2b60066bf96863c29ef029ed02470c4f8e920f9345348a635a | [Check if value is a stream > Check if value is a writable stream]
## Check if value is a writable stream
A [writable stream](https://nodejs.org/api/stream.html#writable-streams) needs to have a `_write` function and a `_writableState` object. This is in addition to the general stream check, defined previously.
```j... | unknown | unknown | [Check if value is a stream > Check if value is a writable stream]
## Check if value is a writable stream
A [writable stream](https://nodejs.org/api/stream.html#writable-streams) needs to have a `_write` function and a `_writableState` object. This is in addition to the general stream check, defined previously.
```j... | [Check if value is a stream > Check if value is a writable stream]
## Check if value is a writable stream
A [writable stream](https://nodejs.org/api/stream.html#writable-streams) needs to have a `_write` function and a `_writableState` object. This is in addition to the general stream check, defined previously.
```j... | code_snippets | ||
d30e1e11-169d-42e8-b993-a4f924cf8eca | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/typecheck-nodejs-streams.md | unknown | 7d46f59b-4005-448d-97ed-0aa6253eb225 | 4 | SemanticChunker@1.0.0 | 8e82bc2d967404467a9a5a3990c7cb744e8641c7180ef6607f3e8481a33e329a | [Check if value is a stream > Check if value is a duplex stream]
## Check if value is a duplex stream
Finally, a [duplex stream](https://nodejs.org/api/stream.html#class-streamduplex) needs to match the conditions for both a readable and a writable stream, as defined previously.
```js
import Stream from 'stream';
c... | unknown | unknown | [Check if value is a stream > Check if value is a duplex stream]
## Check if value is a duplex stream
Finally, a [duplex stream](https://nodejs.org/api/stream.html#class-streamduplex) needs to match the conditions for both a readable and a writable stream, as defined previously.
```js
import Stream from 'stream';
c... | [Check if value is a stream > Check if value is a duplex stream]
## Check if value is a duplex stream
Finally, a [duplex stream](https://nodejs.org/api/stream.html#class-streamduplex) needs to match the conditions for both a readable and a writable stream, as defined previously.
```js
import Stream from 'stream';
c... | code_snippets | ||
e174f994-4c57-4694-b263-8e0761c48336 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/typecheck-nodejs-streams.md | unknown | 7d46f59b-4005-448d-97ed-0aa6253eb225 | 0 | SemanticChunker@1.0.0 | 9570b8a536bb18e58417473d3968b7a7e3d381d00967369d8cd37bc29df6e225 | ---
title: How can I check if a value implements a stream in Node.js?
shortTitle: Stream type checking
language: javascript
tags: [node,type]
excerpt: Learn how to type check for different types of streams in Node.js.
cover: mountain-lake-cottage-2
listed: true
dateModified: 2023-12-21
---
A [Stream](https://nodejs.or... | unknown | unknown | ---
title: How can I check if a value implements a stream in Node.js?
shortTitle: Stream type checking
language: javascript
tags: [node,type]
excerpt: Learn how to type check for different types of streams in Node.js.
cover: mountain-lake-cottage-2
listed: true
dateModified: 2023-12-21
---
A [Stream](https://nodejs.or... | ---
title: How can I check if a value implements a stream in Node.js?
shortTitle: Stream type checking
language: javascript
tags: [node,type]
excerpt: Learn how to type check for different types of streams in Node.js.
cover: mountain-lake-cottage-2
listed: true
dateModified: 2023-12-21
---
A [Stream](https://nodejs.or... | code_snippets | ||
0df2695a-782b-4bac-836d-61834e372374 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/typecheck-array.md | unknown | bf8c29ce-c4a5-4011-a17e-22d255d5c55e | 0 | SemanticChunker@1.0.0 | 1b2a78fd3775e61dc0fe6af14344719efbccf465c0cda9d77bd52f3f51982cd2 | ---
title: Typechecking JavaScript arrays with Array.isArray()
shortTitle: Array typechecking
language: javascript
tags: [type,array]
cover: purple-flower-field
excerpt: Make sure to use the correct method when checking if a JavaScript object is an array.
listed: true
dateModified: 2022-11-06
---
To determine if an ob... | unknown | unknown | ---
title: Typechecking JavaScript arrays with Array.isArray()
shortTitle: Array typechecking
language: javascript
tags: [type,array]
cover: purple-flower-field
excerpt: Make sure to use the correct method when checking if a JavaScript object is an array.
listed: true
dateModified: 2022-11-06
---
To determine if an ob... | ---
title: Typechecking JavaScript arrays with Array.isArray()
shortTitle: Array typechecking
language: javascript
tags: [type,array]
cover: purple-flower-field
excerpt: Make sure to use the correct method when checking if a JavaScript object is an array.
listed: true
dateModified: 2022-11-06
---
To determine if an ob... | code_snippets | ||
48efe7cd-c986-4906-b255-bee4aceb57a0 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/trigger-event.md | unknown | 6d597cd5-44ca-42a7-9f10-17601adb52f0 | 0 | SemanticChunker@1.0.0 | 892e9ed653cd6dc84a1dbaae66b86d68a34f872a4ceffc9dac5b6d2ecef02ec7 | ---
title: Programmatically trigger event on HTML element using JavaScript
shortTitle: Trigger event on HTML element
language: javascript
tags: [browser,event]
cover: cloudy-mountaintop-2
excerpt: Learn how to trigger an event on an HTML element using JavaScript.
listed: true
dateModified: 2023-11-03
---
JavaScript's ... | unknown | unknown | ---
title: Programmatically trigger event on HTML element using JavaScript
shortTitle: Trigger event on HTML element
language: javascript
tags: [browser,event]
cover: cloudy-mountaintop-2
excerpt: Learn how to trigger an event on an HTML element using JavaScript.
listed: true
dateModified: 2023-11-03
---
JavaScript's ... | ---
title: Programmatically trigger event on HTML element using JavaScript
shortTitle: Trigger event on HTML element
language: javascript
tags: [browser,event]
cover: cloudy-mountaintop-2
excerpt: Learn how to trigger an event on an HTML element using JavaScript.
listed: true
dateModified: 2023-11-03
---
JavaScript's ... | code_snippets | ||
05c0bd8d-c873-4a05-a193-2086774b315c | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-degree-min-height-tree.md | unknown | bfa04919-3f29-4ee4-89c6-0ac9723efe73 | 0 | SemanticChunker@1.0.0 | db2bb8884e5d3b3cff90a0406bb91f5141f8f2a94fac306ffd6b5570dcc605eb | ---
title: How can I find the minimum height tree in an undirected tree in JavaScript?
shortTitle: Minimum height undirected tree
language: javascript
tags: [algorithm,array]
cover: cozy-cafe
excerpt: Using the degree of nodes, we can employ a very efficient algorithmic trick to find the minimum height tree in an undir... | unknown | unknown | ---
title: How can I find the minimum height tree in an undirected tree in JavaScript?
shortTitle: Minimum height undirected tree
language: javascript
tags: [algorithm,array]
cover: cozy-cafe
excerpt: Using the degree of nodes, we can employ a very efficient algorithmic trick to find the minimum height tree in an undir... | ---
title: How can I find the minimum height tree in an undirected tree in JavaScript?
shortTitle: Minimum height undirected tree
language: javascript
tags: [algorithm,array]
cover: cozy-cafe
excerpt: Using the degree of nodes, we can employ a very efficient algorithmic trick to find the minimum height tree in an undir... | code_snippets | ||
193fff41-d068-41c2-be7f-e830898b53a0 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-degree-min-height-tree.md | unknown | bfa04919-3f29-4ee4-89c6-0ac9723efe73 | 2 | SemanticChunker@1.0.0 | 86f1ff7e51a5fbb2b0e76b4469123790d7260d76575d5cf811da057a267523a8 | [Node degrees > Minimum height tree]
## Minimum height tree
Given a tree, the **minimum height tree** is defined as the tree that has the **minimum number of edges from the root to any leaf node**. In other words, it is the tree that minimizes the height of the tree.
For our example, this would be a tree with a heig... | unknown | unknown | [Node degrees > Minimum height tree]
## Minimum height tree
Given a tree, the **minimum height tree** is defined as the tree that has the **minimum number of edges from the root to any leaf node**. In other words, it is the tree that minimizes the height of the tree.
For our example, this would be a tree with a heig... | [Node degrees > Minimum height tree]
## Minimum height tree
Given a tree, the **minimum height tree** is defined as the tree that has the **minimum number of edges from the root to any leaf node**. In other words, it is the tree that minimizes the height of the tree.
For our example, this would be a tree with a heig... | code_snippets | ||
34b19b02-bc74-457f-9ef0-f2e77f1c7d38 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-degree-min-height-tree.md | unknown | bfa04919-3f29-4ee4-89c6-0ac9723efe73 | 3 | SemanticChunker@1.0.0 | 791e39053046ac8383cede4d0ca0147fa3f9a525b3bb284252e7236fbf8fdab2 | [Node degrees > Implementation]
## Implementation
The key insight to this problem comes from the fact that **the minimum height tree can be found by removing leaf nodes iteratively**. A leaf node is defined as a node with a degree of `1` (i.e., it has only one edge connected to it).
Using this insight, we can effici... | unknown | unknown | [Node degrees > Implementation]
## Implementation
The key insight to this problem comes from the fact that **the minimum height tree can be found by removing leaf nodes iteratively**. A leaf node is defined as a node with a degree of `1` (i.e., it has only one edge connected to it).
Using this insight, we can effici... | [Node degrees > Implementation]
## Implementation
The key insight to this problem comes from the fact that **the minimum height tree can be found by removing leaf nodes iteratively**. A leaf node is defined as a node with a degree of `1` (i.e., it has only one edge connected to it).
Using this insight, we can effici... | code_snippets | ||
58d9d2a6-4427-4d8c-9d83-30fc8cc9e07d | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-degree-min-height-tree.md | unknown | bfa04919-3f29-4ee4-89c6-0ac9723efe73 | 4 | SemanticChunker@1.0.0 | 00c0a76a66404a723703ddbf2d5f59ae73d3b5b8610c53605b2749e848e4b1b5 | [Node degrees > Conclusion]
## Conclusion
While minimum height trees may seem intimidating at first, they're actually quite a straightforward problem to solve using the concept of node degrees and iterative leaf removal. By understanding the properties of the data structure, we can unlock efficient and elegant soluti... | unknown | unknown | [Node degrees > Conclusion]
## Conclusion
While minimum height trees may seem intimidating at first, they're actually quite a straightforward problem to solve using the concept of node degrees and iterative leaf removal. By understanding the properties of the data structure, we can unlock efficient and elegant soluti... | [Node degrees > Conclusion]
## Conclusion
While minimum height trees may seem intimidating at first, they're actually quite a straightforward problem to solve using the concept of node degrees and iterative leaf removal. By understanding the properties of the data structure, we can unlock efficient and elegant soluti... | code_snippets | ||
91eacb60-cbdd-41f1-add7-752079aa3171 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-degree-min-height-tree.md | unknown | bfa04919-3f29-4ee4-89c6-0ac9723efe73 | 1 | SemanticChunker@1.0.0 | af9793f5a15dcb0abb5c747df799f23f78c4ba67182df01cd57235ee8527d3aa | [Node degrees]
## Node degrees
The degree of a node in an undirected tree is the number of edges connected to it. Note that, as the tree is undirected, there is no indegree or outdegree; the degree is simply the count of edges connected to that node.
Let's look at the by now familiar undirected tree example:
![Undi... | unknown | unknown | [Node degrees]
## Node degrees
The degree of a node in an undirected tree is the number of edges connected to it. Note that, as the tree is undirected, there is no indegree or outdegree; the degree is simply the count of edges connected to that node.
Let's look at the by now familiar undirected tree example:
![Undi... | [Node degrees]
## Node degrees
The degree of a node in an undirected tree is the number of edges connected to it. Note that, as the tree is undirected, there is no indegree or outdegree; the degree is simply the count of edges connected to that node.
Let's look at the by now familiar undirected tree example:
![Undi... | code_snippets | ||
9e96966b-e584-4dec-9a64-4e4e143180b5 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/transpose-matrix.md | unknown | 8cadc44b-7399-48e9-a0dd-0fb07add1a40 | 0 | SemanticChunker@1.0.0 | a1cff827b759ebb67d5063409f5aa2d5513d36ebf76e04ae8e0e23aad1601f71 | ---
title: Transpose a matrix in JavaScript
shortTitle: Transpose matrix
language: javascript
tags: [array]
cover: camera-zoom
excerpt: Learn how to transpose a two-dimensional array in JavaScript.
listed: true
dateModified: 2024-07-18
---
A **matrix transpose** is an operation that switches the rows and columns of a ... | unknown | unknown | ---
title: Transpose a matrix in JavaScript
shortTitle: Transpose matrix
language: javascript
tags: [array]
cover: camera-zoom
excerpt: Learn how to transpose a two-dimensional array in JavaScript.
listed: true
dateModified: 2024-07-18
---
A **matrix transpose** is an operation that switches the rows and columns of a ... | ---
title: Transpose a matrix in JavaScript
shortTitle: Transpose matrix
language: javascript
tags: [array]
cover: camera-zoom
excerpt: Learn how to transpose a two-dimensional array in JavaScript.
listed: true
dateModified: 2024-07-18
---
A **matrix transpose** is an operation that switches the rows and columns of a ... | code_snippets | ||
30ef1a72-10c1-44df-b698-227a0b788055 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/truncate-string.md | unknown | b6db3178-997a-4991-831d-80bc78356719 | 2 | SemanticChunker@1.0.0 | 118d9b90df835983e3505017e359bdb9b0d3efd73af95f3e0d5707d79dbd9a0f | [Truncate string > Truncate string, adding ellipsis]
## Truncate string, adding ellipsis
That works, but the result doesn't hint at the fact that the string has been truncated. Let's **add an ellipsis** to the end of the string to indicate that it has been truncated. We can do this by appending `'...'` to the end of ... | unknown | unknown | [Truncate string > Truncate string, adding ellipsis]
## Truncate string, adding ellipsis
That works, but the result doesn't hint at the fact that the string has been truncated. Let's **add an ellipsis** to the end of the string to indicate that it has been truncated. We can do this by appending `'...'` to the end of ... | [Truncate string > Truncate string, adding ellipsis]
## Truncate string, adding ellipsis
That works, but the result doesn't hint at the fact that the string has been truncated. Let's **add an ellipsis** to the end of the string to indicate that it has been truncated. We can do this by appending `'...'` to the end of ... | code_snippets | ||
9bf87f9c-7fa1-4767-b3a9-9c32970f73b2 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/truncate-string.md | unknown | b6db3178-997a-4991-831d-80bc78356719 | 5 | SemanticChunker@1.0.0 | cd70fab7c29274c9a051d93a82d63b11178036a1a50a2c6e299b7dfc9cec05b8 | [Truncate string > Locale-sensitive string truncation]
> [!NOTE]
>
> The `Intl.Segmenter` object is available in modern browsers and Node.js, since **v16.0.0**. Make sure to check compatibility for your target environment. | unknown | unknown | [Truncate string > Locale-sensitive string truncation]
> [!NOTE]
>
> The `Intl.Segmenter` object is available in modern browsers and Node.js, since **v16.0.0**. Make sure to check compatibility for your target environment. | [Truncate string > Locale-sensitive string truncation]
> [!NOTE]
>
> The `Intl.Segmenter` object is available in modern browsers and Node.js, since **v16.0.0**. Make sure to check compatibility for your target environment. | code_snippets | ||
9d4937e2-56b9-4506-8de2-b0a644cc944f | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/truncate-string.md | unknown | b6db3178-997a-4991-831d-80bc78356719 | 0 | SemanticChunker@1.0.0 | fd1be4461b95bd51ca68a7ed9bff9f0e61c02ba76701bb240d8c6d8e4f0737b1 | ---
title: How can I truncate a string to a specified length using JavaScript?
shortTitle: Truncate string
language: javascript
tags: [string]
cover: reflection-on-lake
excerpt: String splitting and truncation, both simple and locale-sensitive are possible in JavaScript. Learn how in this guide.
listed: true
dateModifi... | unknown | unknown | ---
title: How can I truncate a string to a specified length using JavaScript?
shortTitle: Truncate string
language: javascript
tags: [string]
cover: reflection-on-lake
excerpt: String splitting and truncation, both simple and locale-sensitive are possible in JavaScript. Learn how in this guide.
listed: true
dateModifi... | ---
title: How can I truncate a string to a specified length using JavaScript?
shortTitle: Truncate string
language: javascript
tags: [string]
cover: reflection-on-lake
excerpt: String splitting and truncation, both simple and locale-sensitive are possible in JavaScript. Learn how in this guide.
listed: true
dateModifi... | code_snippets | ||
b4b7c7f4-be39-4a5b-ba39-adf3ee3eb8df | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/truncate-string.md | unknown | b6db3178-997a-4991-831d-80bc78356719 | 4 | SemanticChunker@1.0.0 | 6957df888021f3c851767a10ca4d5c3fd0d1a3cf9dc6df1a5c6d488d6b5f403a | [Truncate string > Locale-sensitive string truncation]
## Locale-sensitive string truncation
Finally, we've arrived at the most complex problem - **locale-sensitive string truncation**. This is a difficult problem to solve, which is why JavaScript has kindly added the `Intl.Segmenter` object.
`Intl.Segmenter` allows... | unknown | unknown | [Truncate string > Locale-sensitive string truncation]
## Locale-sensitive string truncation
Finally, we've arrived at the most complex problem - **locale-sensitive string truncation**. This is a difficult problem to solve, which is why JavaScript has kindly added the `Intl.Segmenter` object.
`Intl.Segmenter` allows... | [Truncate string > Locale-sensitive string truncation]
## Locale-sensitive string truncation
Finally, we've arrived at the most complex problem - **locale-sensitive string truncation**. This is a difficult problem to solve, which is why JavaScript has kindly added the `Intl.Segmenter` object.
`Intl.Segmenter` allows... | code_snippets | ||
e273cb77-96b9-497d-bf06-104339512d4e | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/truncate-string.md | unknown | b6db3178-997a-4991-831d-80bc78356719 | 1 | SemanticChunker@1.0.0 | facd4f37b605deb9bc3591456319d02e2277c5ded7999c305175b802977c6c44 | [Truncate string]
## Truncate string
The absolute simplest way to truncate a string is to use `String.prototype.slice()`. All you have to do is compare `String.prototype.length` to the desired length and return the string truncated to the desired length. If the string is **shorter than the desired length**, return th... | unknown | unknown | [Truncate string]
## Truncate string
The absolute simplest way to truncate a string is to use `String.prototype.slice()`. All you have to do is compare `String.prototype.length` to the desired length and return the string truncated to the desired length. If the string is **shorter than the desired length**, return th... | [Truncate string]
## Truncate string
The absolute simplest way to truncate a string is to use `String.prototype.slice()`. All you have to do is compare `String.prototype.length` to the desired length and return the string truncated to the desired length. If the string is **shorter than the desired length**, return th... | code_snippets | ||
e74f1a37-168e-4130-9845-c9c44f56f859 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/truncate-string.md | unknown | b6db3178-997a-4991-831d-80bc78356719 | 3 | SemanticChunker@1.0.0 | 6d48e35efc0809ad61192ef2459fd81b8bf02cb702234e8762b24d481371608f | [Truncate string > Truncate string at whitespace]
## Truncate string at whitespace
Up until this point, we've been truncating the string at the specified length, regardless of whether it's in the middle of a word or not. But you might need to **respect word boundaries** and truncate the string at a whitespace charact... | unknown | unknown | [Truncate string > Truncate string at whitespace]
## Truncate string at whitespace
Up until this point, we've been truncating the string at the specified length, regardless of whether it's in the middle of a word or not. But you might need to **respect word boundaries** and truncate the string at a whitespace charact... | [Truncate string > Truncate string at whitespace]
## Truncate string at whitespace
Up until this point, we've been truncating the string at the specified length, regardless of whether it's in the middle of a word or not. But you might need to **respect word boundaries** and truncate the string at a whitespace charact... | code_snippets | ||
0e8ddfad-0951-4115-a083-f520267807be | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/user-centric-api-design.md | unknown | d682ff04-6a32-48dd-952d-9cb0933f636a | 12 | SemanticChunker@1.0.0 | a4ced5e1467ce3ac56ded73b60e0f1f21290acd48427f8d1531dab43789971b4 | [API design > Edge cases]
### Edge cases
Even with all of these systems in place, there will most likely be **special cases** that don't fit the mold. We'll address these on a case-by-case basis, but having established a **general strategy** will help us make educated decisions that will make sense for users. | unknown | unknown | [API design > Edge cases]
### Edge cases
Even with all of these systems in place, there will most likely be **special cases** that don't fit the mold. We'll address these on a case-by-case basis, but having established a **general strategy** will help us make educated decisions that will make sense for users. | [API design > Edge cases]
### Edge cases
Even with all of these systems in place, there will most likely be **special cases** that don't fit the mold. We'll address these on a case-by-case basis, but having established a **general strategy** will help us make educated decisions that will make sense for users. | code_snippets | ||
1749ef78-b7ed-40a4-9135-b5067cb35f17 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/user-centric-api-design.md | unknown | d682ff04-6a32-48dd-952d-9cb0933f636a | 15 | SemanticChunker@1.0.0 | 229619eff2676e6680e4a0ce9404c2a8741493ae074df52abcbf18b3769d9ddb | [Edge cases > Character sets]
#### Character sets
Last but not last, character sets are a special case in and of themselves. A range has a start and an end, but what happens if we want to match any character in a set of characters that do not form a contiguous range?
```js
// Good - simple range
range('a', 'z'); // ... | unknown | unknown | [Edge cases > Character sets]
#### Character sets
Last but not last, character sets are a special case in and of themselves. A range has a start and an end, but what happens if we want to match any character in a set of characters that do not form a contiguous range?
```js
// Good - simple range
range('a', 'z'); // ... | [Edge cases > Character sets]
#### Character sets
Last but not last, character sets are a special case in and of themselves. A range has a start and an end, but what happens if we want to match any character in a set of characters that do not form a contiguous range?
```js
// Good - simple range
range('a', 'z'); // ... | code_snippets | ||
252acea0-8102-4574-b050-5f2da29d8da9 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/user-centric-api-design.md | unknown | d682ff04-6a32-48dd-952d-9cb0933f636a | 14 | SemanticChunker@1.0.0 | 8d21162d2170f47351e715bc3e0f93c8ea216f56d081aa2e42463683191cf8ca | [Edge cases > Quantifiers]
#### Quantifiers
The `repeat` quantifier is the most common one in these examples and for good reason. It's a very common pattern that's also quite versatile. However, designing it in a way that makes sense is a bit tricky. We need to support three resulting syntaxes:
1. Exact match (exact... | unknown | unknown | [Edge cases > Quantifiers]
#### Quantifiers
The `repeat` quantifier is the most common one in these examples and for good reason. It's a very common pattern that's also quite versatile. However, designing it in a way that makes sense is a bit tricky. We need to support three resulting syntaxes:
1. Exact match (exact... | [Edge cases > Quantifiers]
#### Quantifiers
The `repeat` quantifier is the most common one in these examples and for good reason. It's a very common pattern that's also quite versatile. However, designing it in a way that makes sense is a bit tricky. We need to support three resulting syntaxes:
1. Exact match (exact... | code_snippets | ||
36b9e6b0-9aea-422f-8c96-db011a262702 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/user-centric-api-design.md | unknown | d682ff04-6a32-48dd-952d-9cb0933f636a | 7 | SemanticChunker@1.0.0 | 0f694a56c6658cc156330d8f3dde82e827433c1ac22db40083ff9e3de376d556 | [Problem brief > API design]
## API design
Having established the goals and the general direction, it's time to look closer upon the developer experience. The drafts I made with TDD so far, even if not fully functional, gave me a good idea of what the API should look like. They also made me aware of **potential issue... | unknown | unknown | [Problem brief > API design]
## API design
Having established the goals and the general direction, it's time to look closer upon the developer experience. The drafts I made with TDD so far, even if not fully functional, gave me a good idea of what the API should look like. They also made me aware of **potential issue... | [Problem brief > API design]
## API design
Having established the goals and the general direction, it's time to look closer upon the developer experience. The drafts I made with TDD so far, even if not fully functional, gave me a good idea of what the API should look like. They also made me aware of **potential issue... | code_snippets | ||
3783a20e-080f-4474-9457-a67247fd5523 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/user-centric-api-design.md | unknown | d682ff04-6a32-48dd-952d-9cb0933f636a | 4 | SemanticChunker@1.0.0 | 2b413a723f7bb4a5393ba600c1f3acac173d7de0579626b8ebb0f9e7c4da6b26 | [Goal statement > Reusability]
### Reusability
The less ambitious goal for this project is to make it easier to **reuse RegExp patterns**. This means that I should be able to create a pattern once and use it in multiple places. This boils down to creating all the necessary **building blocks** to make this possible an... | unknown | unknown | [Goal statement > Reusability]
### Reusability
The less ambitious goal for this project is to make it easier to **reuse RegExp patterns**. This means that I should be able to create a pattern once and use it in multiple places. This boils down to creating all the necessary **building blocks** to make this possible an... | [Goal statement > Reusability]
### Reusability
The less ambitious goal for this project is to make it easier to **reuse RegExp patterns**. This means that I should be able to create a pattern once and use it in multiple places. This boils down to creating all the necessary **building blocks** to make this possible an... | code_snippets | ||
47e1b8c5-b0f8-4ee3-9fb4-453f8a379047 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/user-centric-api-design.md | unknown | d682ff04-6a32-48dd-952d-9cb0933f636a | 0 | SemanticChunker@1.0.0 | e4602a471139a39b2de286f1602c61898047faeff581d0cef0db85d641e2d48a | ---
title: Designing a user-centric API for a JavaScript library
shortTitle: User-centric API design
language: javascript
tags: [webdev,regexp]
cover: succulent-6
excerpt: Building atop the TDD foundation from last time, let's explore how to design a user-centric API for our JavaScript library.
listed: true
dateModifie... | unknown | unknown | ---
title: Designing a user-centric API for a JavaScript library
shortTitle: User-centric API design
language: javascript
tags: [webdev,regexp]
cover: succulent-6
excerpt: Building atop the TDD foundation from last time, let's explore how to design a user-centric API for our JavaScript library.
listed: true
dateModifie... | ---
title: Designing a user-centric API for a JavaScript library
shortTitle: User-centric API design
language: javascript
tags: [webdev,regexp]
cover: succulent-6
excerpt: Building atop the TDD foundation from last time, let's explore how to design a user-centric API for our JavaScript library.
listed: true
dateModifie... | code_snippets | ||
54749e81-2d94-4024-ab8a-8288bbcc715e | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/user-centric-api-design.md | unknown | d682ff04-6a32-48dd-952d-9cb0933f636a | 6 | SemanticChunker@1.0.0 | 44f1064a1889dd5986c8f96654bc2783d8822314e2fd900acb11fe12caf1c340 | [Goal statement > Readability & maintainability]
```
```js title="src/myDraft.js"
// Pseudocode approximation of what I imagine under the hood
const or = (...patterns) => `(${patterns.join('|')})`;
const concat = (...patterns) => patterns.join('');
const zeroOrMore = pattern => `${pattern}*`;
const zeroOrOne = patter... | unknown | unknown | [Goal statement > Readability & maintainability]
```
```js title="src/myDraft.js"
// Pseudocode approximation of what I imagine under the hood
const or = (...patterns) => `(${patterns.join('|')})`;
const concat = (...patterns) => patterns.join('');
const zeroOrMore = pattern => `${pattern}*`;
const zeroOrOne = patter... | [Goal statement > Readability & maintainability]
```
```js title="src/myDraft.js"
// Pseudocode approximation of what I imagine under the hood
const or = (...patterns) => `(${patterns.join('|')})`;
const concat = (...patterns) => patterns.join('');
const zeroOrMore = pattern => `${pattern}*`;
const zeroOrOne = patter... | code_snippets | ||
67c142cc-5a3c-452d-b17d-9f5383eb5113 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/user-centric-api-design.md | unknown | d682ff04-6a32-48dd-952d-9cb0933f636a | 5 | SemanticChunker@1.0.0 | fcb264b26f6f6f0ec9dd5a1048ad0e0b02eea327bfcc12d2c4d9f05bd98e54c1 | [Goal statement > Readability & maintainability]
### Readability & maintainability
Our **health metrics**, if you will, are how easy it is to read and maintain the code written with this library. The main hassle of RegExp is how much time is wasted trying to understand what the last person - or you from the past - di... | unknown | unknown | [Goal statement > Readability & maintainability]
### Readability & maintainability
Our **health metrics**, if you will, are how easy it is to read and maintain the code written with this library. The main hassle of RegExp is how much time is wasted trying to understand what the last person - or you from the past - di... | [Goal statement > Readability & maintainability]
### Readability & maintainability
Our **health metrics**, if you will, are how easy it is to read and maintain the code written with this library. The main hassle of RegExp is how much time is wasted trying to understand what the last person - or you from the past - di... | code_snippets | ||
6df0c004-be7b-49fe-9d51-ad8bdb6167c1 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/user-centric-api-design.md | unknown | d682ff04-6a32-48dd-952d-9cb0933f636a | 1 | SemanticChunker@1.0.0 | ed460e105273bf9966430f2992ea352b4d167e529c3c672f54a65a9f80465a80 | [Problem brief]
## Problem brief
My project involves around a simple concept - the **regular expression** <dfn title="A domain-specific language (DSL) is a computer language specialized to a particular application domain. This is in contrast to a general-purpose language (GPL), which is broadly applicable across doma... | unknown | unknown | [Problem brief]
## Problem brief
My project involves around a simple concept - the **regular expression** <dfn title="A domain-specific language (DSL) is a computer language specialized to a particular application domain. This is in contrast to a general-purpose language (GPL), which is broadly applicable across doma... | [Problem brief]
## Problem brief
My project involves around a simple concept - the **regular expression** <dfn title="A domain-specific language (DSL) is a computer language specialized to a particular application domain. This is in contrast to a general-purpose language (GPL), which is broadly applicable across doma... | code_snippets | ||
74a377fe-a179-49b2-a9b5-5aca7d2dbc61 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/user-centric-api-design.md | unknown | d682ff04-6a32-48dd-952d-9cb0933f636a | 10 | SemanticChunker@1.0.0 | 1101185f7ea6f5c2d97b65038c6896f5468b701f10b2bfedaab15dfb430f46f5 | [API design > Special arguments]
### Special arguments
Naturally, there will be edge cases to any design, no matter how nice and elegant it is. In the case of this little library, some patterns, like `namedGroup` or `repeat`, will require some special arguments.
While initially I thought we can stick those arguments... | unknown | unknown | [API design > Special arguments]
### Special arguments
Naturally, there will be edge cases to any design, no matter how nice and elegant it is. In the case of this little library, some patterns, like `namedGroup` or `repeat`, will require some special arguments.
While initially I thought we can stick those arguments... | [API design > Special arguments]
### Special arguments
Naturally, there will be edge cases to any design, no matter how nice and elegant it is. In the case of this little library, some patterns, like `namedGroup` or `repeat`, will require some special arguments.
While initially I thought we can stick those arguments... | code_snippets | ||
7e9e1f12-5d35-49cf-8c96-e1f283495a78 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/user-centric-api-design.md | unknown | d682ff04-6a32-48dd-952d-9cb0933f636a | 11 | SemanticChunker@1.0.0 | 36539a8c887b3f9b620fb34a411190c783e46109fc451628b4d3d89efe5f8f72 | [API design > Named arguments]
### Named arguments
One of the features I wish JavaScript had is something like [Ruby's keyword arguments](https://thoughtbot.com/upcase/videos/ruby-keyword-arguments). Luckily, for many years now, we've been using objects and, as early as ES6 was around, [object destructuring](https://... | unknown | unknown | [API design > Named arguments]
### Named arguments
One of the features I wish JavaScript had is something like [Ruby's keyword arguments](https://thoughtbot.com/upcase/videos/ruby-keyword-arguments). Luckily, for many years now, we've been using objects and, as early as ES6 was around, [object destructuring](https://... | [API design > Named arguments]
### Named arguments
One of the features I wish JavaScript had is something like [Ruby's keyword arguments](https://thoughtbot.com/upcase/videos/ruby-keyword-arguments). Luckily, for many years now, we've been using objects and, as early as ES6 was around, [object destructuring](https://... | code_snippets | ||
82396af3-52e0-4c68-a37a-f2e654bb1320 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/user-centric-api-design.md | unknown | d682ff04-6a32-48dd-952d-9cb0933f636a | 16 | SemanticChunker@1.0.0 | e4d4faefcf3c77ca1b8918893cd2298077ee60c9031d6c4d48c08211f4f6c0b6 | [Problem brief > Conclusion]
## Conclusion
That was quite a long journey, but I believe careful, **user-centric API design** is crucial to the success of any library or tool. A well-designed API can make a library a joy to use, while a poorly designed one can make it a nightmare. After all, developer experience is no... | unknown | unknown | [Problem brief > Conclusion]
## Conclusion
That was quite a long journey, but I believe careful, **user-centric API design** is crucial to the success of any library or tool. A well-designed API can make a library a joy to use, while a poorly designed one can make it a nightmare. After all, developer experience is no... | [Problem brief > Conclusion]
## Conclusion
That was quite a long journey, but I believe careful, **user-centric API design** is crucial to the success of any library or tool. A well-designed API can make a library a joy to use, while a poorly designed one can make it a nightmare. After all, developer experience is no... | code_snippets | ||
8e9d39a1-7534-4038-94c8-cb127c206431 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/user-centric-api-design.md | unknown | d682ff04-6a32-48dd-952d-9cb0933f636a | 2 | SemanticChunker@1.0.0 | 25358f4cda9ee94ab3049c4e48651005e962af35680ceca1b63ce94dee9d601d | [Problem brief > Goal statement]
## Goal statement
My primary goal is to create a more **natural way to express regular expressions**. As a secondary goal, I also want to make it easier to **reuse patterns**, so that one could conceptually create building blocks or libraries of RegExp patterns. Finally, as with anyth... | unknown | unknown | [Problem brief > Goal statement]
## Goal statement
My primary goal is to create a more **natural way to express regular expressions**. As a secondary goal, I also want to make it easier to **reuse patterns**, so that one could conceptually create building blocks or libraries of RegExp patterns. Finally, as with anyth... | [Problem brief > Goal statement]
## Goal statement
My primary goal is to create a more **natural way to express regular expressions**. As a secondary goal, I also want to make it easier to **reuse patterns**, so that one could conceptually create building blocks or libraries of RegExp patterns. Finally, as with anyth... | code_snippets | ||
9018d813-1280-4b6c-b005-c83cd7c391c0 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/user-centric-api-design.md | unknown | d682ff04-6a32-48dd-952d-9cb0933f636a | 9 | SemanticChunker@1.0.0 | a267b8bfeea0c04f837b405a480d5804924859648caf580c840816269fbe9a79 | [API design > Function arguments]
### Function arguments
One of the make-or-break aspects of any API is the **arguments** of its functions. The amount of them, the ordering, the types, and the defaults all play a role in how easy it is to use the API. **Ambiguity** is the enemy here, but there are other aspects to co... | unknown | unknown | [API design > Function arguments]
### Function arguments
One of the make-or-break aspects of any API is the **arguments** of its functions. The amount of them, the ordering, the types, and the defaults all play a role in how easy it is to use the API. **Ambiguity** is the enemy here, but there are other aspects to co... | [API design > Function arguments]
### Function arguments
One of the make-or-break aspects of any API is the **arguments** of its functions. The amount of them, the ordering, the types, and the defaults all play a role in how easy it is to use the API. **Ambiguity** is the enemy here, but there are other aspects to co... | code_snippets | ||
9d37b748-3d28-40d0-94ec-19314e23fd41 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/user-centric-api-design.md | unknown | d682ff04-6a32-48dd-952d-9cb0933f636a | 3 | SemanticChunker@1.0.0 | dae7e3a6147015df4b6b827a8f442cf274eeac4c518d078754364944e29df7f7 | [Goal statement > Natural language]
### Natural language
As stated before, the main ask is a way to describe regular expressions in a more natural way. To that end, I want to be able to express in code what I would describe to a colleague somewhat familiar with the concept, in **natural language**. This means somethi... | unknown | unknown | [Goal statement > Natural language]
### Natural language
As stated before, the main ask is a way to describe regular expressions in a more natural way. To that end, I want to be able to express in code what I would describe to a colleague somewhat familiar with the concept, in **natural language**. This means somethi... | [Goal statement > Natural language]
### Natural language
As stated before, the main ask is a way to describe regular expressions in a more natural way. To that end, I want to be able to express in code what I would describe to a colleague somewhat familiar with the concept, in **natural language**. This means somethi... | code_snippets | ||
c0bf4b65-6832-41cc-bae2-f3b600eb3530 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/user-centric-api-design.md | unknown | d682ff04-6a32-48dd-952d-9cb0933f636a | 8 | SemanticChunker@1.0.0 | 404ab21e743d15f421090c35ab49b54954218117815e07103b39877913a6a7f9 | [API design > Naming]
### Naming
> There are only 2 hard things in Computer Science: cache invalidation & naming things.
>
> _— Phil Karlton_
Naming is hard, but it's also very important. Remember the original assumption that the end user is somewhat familiar with RegExp? This means we can **use well-established ter... | unknown | unknown | [API design > Naming]
### Naming
> There are only 2 hard things in Computer Science: cache invalidation & naming things.
>
> _— Phil Karlton_
Naming is hard, but it's also very important. Remember the original assumption that the end user is somewhat familiar with RegExp? This means we can **use well-established ter... | [API design > Naming]
### Naming
> There are only 2 hard things in Computer Science: cache invalidation & naming things.
>
> _— Phil Karlton_
Naming is hard, but it's also very important. Remember the original assumption that the end user is somewhat familiar with RegExp? This means we can **use well-established ter... | code_snippets | ||
fb5a43f4-b3c0-40fc-a334-234c9255677f | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/user-centric-api-design.md | unknown | d682ff04-6a32-48dd-952d-9cb0933f636a | 13 | SemanticChunker@1.0.0 | d2532103e4aec1bebc4c3cdd3cb271446734a4fcd145a04f45b3634b4e23c2d9 | [Edge cases > Backreferences]
#### Backreferences
The first case I want to discuss are backreferences. They are a special kind of pattern that refers to a previously captured group. The difference with other patterns is that they are not patterns, but rather a reference to a pattern, either via name or index.
@[Quic... | unknown | unknown | [Edge cases > Backreferences]
#### Backreferences
The first case I want to discuss are backreferences. They are a special kind of pattern that refers to a previously captured group. The difference with other patterns is that they are not patterns, but rather a reference to a pattern, either via name or index.
@[Quic... | [Edge cases > Backreferences]
#### Backreferences
The first case I want to discuss are backreferences. They are a special kind of pattern that refers to a previously captured group. The difference with other patterns is that they are not patterns, but rather a reference to a pattern, either via name or index.
@[Quic... | code_snippets | ||
3efc068c-76a8-40ae-8a2c-38e5dca14a60 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/uuid-generator.md | unknown | f1a4470f-4d71-41e2-a947-3185c286c86e | 0 | SemanticChunker@1.0.0 | 75ed6acfb57cf3ddda9e39f36e303d94da76b0aabcee1229773a38c3a2507c85 | ---
title: Generate a UUID in JavaScript
shortTitle: Generate UUID
language: javascript
tags: [browser,node,random]
cover: digital-nomad-7
excerpt: Generate a UUID in JavaScript using native APIs in both the browser and Node.js.
listed: true
dateModified: 2023-12-27
---
A [Universally Unique Identifier (UUID)](https:/... | unknown | unknown | ---
title: Generate a UUID in JavaScript
shortTitle: Generate UUID
language: javascript
tags: [browser,node,random]
cover: digital-nomad-7
excerpt: Generate a UUID in JavaScript using native APIs in both the browser and Node.js.
listed: true
dateModified: 2023-12-27
---
A [Universally Unique Identifier (UUID)](https:/... | ---
title: Generate a UUID in JavaScript
shortTitle: Generate UUID
language: javascript
tags: [browser,node,random]
cover: digital-nomad-7
excerpt: Generate a UUID in JavaScript using native APIs in both the browser and Node.js.
listed: true
dateModified: 2023-12-27
---
A [Universally Unique Identifier (UUID)](https:/... | code_snippets | ||
6e48e555-1f41-4f54-b400-3535f94d0a81 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/uuid-generator.md | unknown | f1a4470f-4d71-41e2-a947-3185c286c86e | 2 | SemanticChunker@1.0.0 | 3c6e56d1c14cadd41b61b57ad4ee1eee0d9946b37855f1b55448674ce700d32c | [Latest browsers & Node.js versions > Older environments]
## Older environments
In older environments, generating a UUID is a more complex task. While the technique described below is going to be **less relevant** as time goes by, I think it's still worth documenting.
> [!NOTE]
>
> This technique is the same for bot... | unknown | unknown | [Latest browsers & Node.js versions > Older environments]
## Older environments
In older environments, generating a UUID is a more complex task. While the technique described below is going to be **less relevant** as time goes by, I think it's still worth documenting.
> [!NOTE]
>
> This technique is the same for bot... | [Latest browsers & Node.js versions > Older environments]
## Older environments
In older environments, generating a UUID is a more complex task. While the technique described below is going to be **less relevant** as time goes by, I think it's still worth documenting.
> [!NOTE]
>
> This technique is the same for bot... | code_snippets | ||
fe09c524-a7fc-4b6f-86e0-245a2ab0c5da | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/uuid-generator.md | unknown | f1a4470f-4d71-41e2-a947-3185c286c86e | 1 | SemanticChunker@1.0.0 | 5318b570a672552ac05f15b90b46d13db0a66b0810814d986af505a2cdf2cf2d | [Latest browsers & Node.js versions]
## Latest browsers & Node.js versions
Generating a UUID in a modern browser or Node.js is very straightforward. As the **Crypto API** has been standardized you can use the `crypto.randomUUID()` method to generate a UUID.
```js title="Browser"
crypto.randomUUID(); // '7982fcfe-572... | unknown | unknown | [Latest browsers & Node.js versions]
## Latest browsers & Node.js versions
Generating a UUID in a modern browser or Node.js is very straightforward. As the **Crypto API** has been standardized you can use the `crypto.randomUUID()` method to generate a UUID.
```js title="Browser"
crypto.randomUUID(); // '7982fcfe-572... | [Latest browsers & Node.js versions]
## Latest browsers & Node.js versions
Generating a UUID in a modern browser or Node.js is very straightforward. As the **Crypto API** has been standardized you can use the `crypto.randomUUID()` method to generate a UUID.
```js title="Browser"
crypto.randomUUID(); // '7982fcfe-572... | code_snippets | ||
ae987693-546d-4f14-8298-aeefb3e13053 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/unwind-object.md | unknown | ea25156f-4b95-4841-a8ff-80959210df89 | 0 | SemanticChunker@1.0.0 | 8a85de072e56b08178670880b2a5cc48a47335290b5145a8c47e11832c054eec | ---
title: Unwind a JavaScript object
shortTitle: Unwind object
language: javascript
tags: [object]
cover: orange-coffee
excerpt: Create an array of objects from an object and one of its array-valued properties.
listed: true
dateModified: 2024-06-07
---
Given an **object with an array-valued property**, you might want... | unknown | unknown | ---
title: Unwind a JavaScript object
shortTitle: Unwind object
language: javascript
tags: [object]
cover: orange-coffee
excerpt: Create an array of objects from an object and one of its array-valued properties.
listed: true
dateModified: 2024-06-07
---
Given an **object with an array-valued property**, you might want... | ---
title: Unwind a JavaScript object
shortTitle: Unwind object
language: javascript
tags: [object]
cover: orange-coffee
excerpt: Create an array of objects from an object and one of its array-valued properties.
listed: true
dateModified: 2024-06-07
---
Given an **object with an array-valued property**, you might want... | code_snippets | ||
04f78089-a88a-481f-829d-886f2cfe352c | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/use-strict.md | unknown | 99e66335-e743-469b-b1ba-712e01c4c442 | 1 | SemanticChunker@1.0.0 | d30f7ec539d080ea4ba87941fae003dc6d4b08526943648eaf6eeb74ea2744d8 | [No accidental global variables]
## No accidental global variables
Strict mode makes it impossible to accidentally create global variables due to mistyped variable names. Assignments, which would accidentally create global variables, instead throw an error in strict mode:
```js
'use strict';
myVariable = 42;
// The ... | unknown | unknown | [No accidental global variables]
## No accidental global variables
Strict mode makes it impossible to accidentally create global variables due to mistyped variable names. Assignments, which would accidentally create global variables, instead throw an error in strict mode:
```js
'use strict';
myVariable = 42;
// The ... | [No accidental global variables]
## No accidental global variables
Strict mode makes it impossible to accidentally create global variables due to mistyped variable names. Assignments, which would accidentally create global variables, instead throw an error in strict mode:
```js
'use strict';
myVariable = 42;
// The ... | code_snippets | ||
0bba077a-0ca5-45c4-89d3-2b8160d79b2f | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/use-strict.md | unknown | 99e66335-e743-469b-b1ba-712e01c4c442 | 0 | SemanticChunker@1.0.0 | 90cfa069fab306deac3e46578859afb94662bd55c0998495e552655f66cb567a | ---
title: What does 'use strict' do and what are some of the key benefits to using it?
shortTitle: Strict mode introduction
language: javascript
tags: [function,object]
cover: palm-tree-house
excerpt: JavaScript's strict mode can make your code faster, cleaner and more secure.
listed: true
dateModified: 2021-11-28
---... | unknown | unknown | ---
title: What does 'use strict' do and what are some of the key benefits to using it?
shortTitle: Strict mode introduction
language: javascript
tags: [function,object]
cover: palm-tree-house
excerpt: JavaScript's strict mode can make your code faster, cleaner and more secure.
listed: true
dateModified: 2021-11-28
---... | ---
title: What does 'use strict' do and what are some of the key benefits to using it?
shortTitle: Strict mode introduction
language: javascript
tags: [function,object]
cover: palm-tree-house
excerpt: JavaScript's strict mode can make your code faster, cleaner and more secure.
listed: true
dateModified: 2021-11-28
---... | code_snippets | ||
230dcccf-f477-440d-97d5-b3841fe7c276 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/use-strict.md | unknown | 99e66335-e743-469b-b1ba-712e01c4c442 | 5 | SemanticChunker@1.0.0 | e1e63a9d4abb1fc020ae6dca02c5344938b4998e92c1f738485c1035edae8310 | [No accidental global variables > No `this` boxing]
## No `this` boxing
Strict mode makes JavaScript more secure, by restricting access the global object via `this`. In strict mode, `this` is not boxed (forced into being an object), meaning that if unspecified it will be `undefined` instead of the global object.
```... | unknown | unknown | [No accidental global variables > No `this` boxing]
## No `this` boxing
Strict mode makes JavaScript more secure, by restricting access the global object via `this`. In strict mode, `this` is not boxed (forced into being an object), meaning that if unspecified it will be `undefined` instead of the global object.
```... | [No accidental global variables > No `this` boxing]
## No `this` boxing
Strict mode makes JavaScript more secure, by restricting access the global object via `this`. In strict mode, `this` is not boxed (forced into being an object), meaning that if unspecified it will be `undefined` instead of the global object.
```... | code_snippets | ||
4c2cbe9e-d4eb-4015-b24a-a05cb2bcc1d5 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/use-strict.md | unknown | 99e66335-e743-469b-b1ba-712e01c4c442 | 4 | SemanticChunker@1.0.0 | 02d9673b659c2fb40da456d8701212db5dc63b2a2902f7258475e19dc65c9e17 | [No accidental global variables > Simplified `arguments`]
## Simplified `arguments`
Strict mode simplifies `arguments`, by removing some of their side effects. `arguments` aren't aliased, thus they always refer to the original arguments when the function was invoked. Moreover, `arguments.callee` and `arguments.caller... | unknown | unknown | [No accidental global variables > Simplified `arguments`]
## Simplified `arguments`
Strict mode simplifies `arguments`, by removing some of their side effects. `arguments` aren't aliased, thus they always refer to the original arguments when the function was invoked. Moreover, `arguments.callee` and `arguments.caller... | [No accidental global variables > Simplified `arguments`]
## Simplified `arguments`
Strict mode simplifies `arguments`, by removing some of their side effects. `arguments` aren't aliased, thus they always refer to the original arguments when the function was invoked. Moreover, `arguments.callee` and `arguments.caller... | code_snippets | ||
9b731584-c768-42ee-9256-4c310fb339de | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/use-strict.md | unknown | 99e66335-e743-469b-b1ba-712e01c4c442 | 2 | SemanticChunker@1.0.0 | 18762cf65631f655e64e1274a815b55541510ff1fcdbeae38ec35cbebc0b8aed | [No accidental global variables > Elimination of silent errors]
## Elimination of silent errors
Strict mode changes some previously-accepted mistakes into errors. These include:
- Assignments which would otherwise silently fail
- Deleting undeletable properties or plain names
- Duplicated names in function arguments... | unknown | unknown | [No accidental global variables > Elimination of silent errors]
## Elimination of silent errors
Strict mode changes some previously-accepted mistakes into errors. These include:
- Assignments which would otherwise silently fail
- Deleting undeletable properties or plain names
- Duplicated names in function arguments... | [No accidental global variables > Elimination of silent errors]
## Elimination of silent errors
Strict mode changes some previously-accepted mistakes into errors. These include:
- Assignments which would otherwise silently fail
- Deleting undeletable properties or plain names
- Duplicated names in function arguments... | code_snippets | ||
b915d66d-dd36-4465-b624-9c5c921db8af | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/use-strict.md | unknown | 99e66335-e743-469b-b1ba-712e01c4c442 | 6 | SemanticChunker@1.0.0 | 31fa805576c2b7bd06aed9f6379e345396fa80a44d40666890fe1a9081d52c7e | [No accidental global variables > Other changes]
## Other changes
Strict mode implements a few more, less commonly-mentioned changes. These include:
- `with` is prohibited, resulting in an error if used
- `Function.prototype.arguments` and `Function.prototype.caller` are non-deletable properties which throw when set... | unknown | unknown | [No accidental global variables > Other changes]
## Other changes
Strict mode implements a few more, less commonly-mentioned changes. These include:
- `with` is prohibited, resulting in an error if used
- `Function.prototype.arguments` and `Function.prototype.caller` are non-deletable properties which throw when set... | [No accidental global variables > Other changes]
## Other changes
Strict mode implements a few more, less commonly-mentioned changes. These include:
- `with` is prohibited, resulting in an error if used
- `Function.prototype.arguments` and `Function.prototype.caller` are non-deletable properties which throw when set... | code_snippets | ||
e920b4fe-e77d-446d-90a6-c87142851b53 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/use-strict.md | unknown | 99e66335-e743-469b-b1ba-712e01c4c442 | 3 | SemanticChunker@1.0.0 | 72123a4553ace1ee6fe67e846d2862ffee3a447b0f6a8e50d616c41bfe24349b | [No accidental global variables > Simplified `eval`]
## Simplified `eval`
Strict mode makes `eval` more transparent by preventing the introduction of new variables in the surrounding scope. In strict mode, `eval` creates variables only for the code being evaluated.
```js
'use strict';
let x = 1;
eval('let x = 3; con... | unknown | unknown | [No accidental global variables > Simplified `eval`]
## Simplified `eval`
Strict mode makes `eval` more transparent by preventing the introduction of new variables in the surrounding scope. In strict mode, `eval` creates variables only for the code being evaluated.
```js
'use strict';
let x = 1;
eval('let x = 3; con... | [No accidental global variables > Simplified `eval`]
## Simplified `eval`
Strict mode makes `eval` more transparent by preventing the introduction of new variables in the surrounding scope. In strict mode, `eval` creates variables only for the code being evaluated.
```js
'use strict';
let x = 1;
eval('let x = 3; con... | code_snippets | ||
004c1f17-3f12-44ee-a823-001ed32982b9 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/upperize-lowerize-object-keys.md | unknown | ef72c482-fd75-47eb-8d10-684fb44d40ab | 0 | SemanticChunker@1.0.0 | 3564d643869abc621745c9c92b921699a8002f2d7df368b0e6eaa5c385843a7c | ---
title: Uppercase or lowercase object keys in JavaScript
shortTitle: Uppercase or lowercase object keys
language: javascript
tags: [object]
excerpt: Convert all the keys of an object to upper or lower case.
cover: sofia-tram
listed: true
dateModified: 2024-01-10
---
Data processing often requires transformation of ... | unknown | unknown | ---
title: Uppercase or lowercase object keys in JavaScript
shortTitle: Uppercase or lowercase object keys
language: javascript
tags: [object]
excerpt: Convert all the keys of an object to upper or lower case.
cover: sofia-tram
listed: true
dateModified: 2024-01-10
---
Data processing often requires transformation of ... | ---
title: Uppercase or lowercase object keys in JavaScript
shortTitle: Uppercase or lowercase object keys
language: javascript
tags: [object]
excerpt: Convert all the keys of an object to upper or lower case.
cover: sofia-tram
listed: true
dateModified: 2024-01-10
---
Data processing often requires transformation of ... | code_snippets | ||
17fe4e97-e6fd-421f-938f-bcf501332e9e | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/upperize-lowerize-object-keys.md | unknown | ef72c482-fd75-47eb-8d10-684fb44d40ab | 2 | SemanticChunker@1.0.0 | 4aad5daca26fd28fa7bd7e27ebf67e2c70a2c4770828dab6a2918c9979a74b94 | [Uppercase object keys > Lowercase object keys]
## Lowercase object keys
Similarly, to convert all the keys of an object to lower case, we can use the same approach. The only notable difference is that we use `String.prototype.toLowerCase()` to lowercase the object's keys.
```js
const lowerize = obj =>
Object.keys(... | unknown | unknown | [Uppercase object keys > Lowercase object keys]
## Lowercase object keys
Similarly, to convert all the keys of an object to lower case, we can use the same approach. The only notable difference is that we use `String.prototype.toLowerCase()` to lowercase the object's keys.
```js
const lowerize = obj =>
Object.keys(... | [Uppercase object keys > Lowercase object keys]
## Lowercase object keys
Similarly, to convert all the keys of an object to lower case, we can use the same approach. The only notable difference is that we use `String.prototype.toLowerCase()` to lowercase the object's keys.
```js
const lowerize = obj =>
Object.keys(... | code_snippets | ||
8da0f729-3153-474d-b6b9-21353d788e07 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/upperize-lowerize-object-keys.md | unknown | ef72c482-fd75-47eb-8d10-684fb44d40ab | 1 | SemanticChunker@1.0.0 | 542bdcfd6827d7137299c4682037a1c77d630bd50f479981af3ca11be4f01643 | [Uppercase object keys]
## Uppercase object keys
In order to convert all the keys of an object to upper case, we first need to obtain an **array of the object's keys**, using `Object.keys()`. Then, use `Array.prototype.reduce()` to **map the array to an object**, using `String.prototype.toUpperCase()` to uppercase th... | unknown | unknown | [Uppercase object keys]
## Uppercase object keys
In order to convert all the keys of an object to upper case, we first need to obtain an **array of the object's keys**, using `Object.keys()`. Then, use `Array.prototype.reduce()` to **map the array to an object**, using `String.prototype.toUpperCase()` to uppercase th... | [Uppercase object keys]
## Uppercase object keys
In order to convert all the keys of an object to upper case, we first need to obtain an **array of the object's keys**, using `Object.keys()`. Then, use `Array.prototype.reduce()` to **map the array to an object**, using `String.prototype.toUpperCase()` to uppercase th... | code_snippets | ||
240f215c-270c-4f13-8c78-54ecea505883 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/unit-converter-data-structure.md | unknown | 4e775e64-3cac-4415-80a6-f3298363ef0a | 0 | SemanticChunker@1.0.0 | 23bfd63803cbd0a0a4369479ed91a7938bbfec080d89b13c10092241a23f8f86 | ---
title: Create a unit converter data structure in JavaScript
shortTitle: Convert between any compatible units
language: javascript
tags: [math,function]
cover: tropical-waterfall-2
excerpt: Learn how to create a unit converter data structure in JavaScript that can convert between any compatible units.
listed: true
d... | unknown | unknown | ---
title: Create a unit converter data structure in JavaScript
shortTitle: Convert between any compatible units
language: javascript
tags: [math,function]
cover: tropical-waterfall-2
excerpt: Learn how to create a unit converter data structure in JavaScript that can convert between any compatible units.
listed: true
d... | ---
title: Create a unit converter data structure in JavaScript
shortTitle: Convert between any compatible units
language: javascript
tags: [math,function]
cover: tropical-waterfall-2
excerpt: Learn how to create a unit converter data structure in JavaScript that can convert between any compatible units.
listed: true
d... | code_snippets | ||
6dec70ba-56b7-464f-b5cd-1fe0948c0959 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/unit-converter-data-structure.md | unknown | 4e775e64-3cac-4415-80a6-f3298363ef0a | 2 | SemanticChunker@1.0.0 | 92df88c6ea440849e2272f741954044833db4250d705e469cf47eff2a7385cca | [Class-based unit converter data structure > Unit converter data structure factory function]
## Unit converter data structure factory function
While this works perfectly fine for a specific type of measurement, we have to repeat the whole process for a different type of measurement. This is not ideal, as we can end u... | unknown | unknown | [Class-based unit converter data structure > Unit converter data structure factory function]
## Unit converter data structure factory function
While this works perfectly fine for a specific type of measurement, we have to repeat the whole process for a different type of measurement. This is not ideal, as we can end u... | [Class-based unit converter data structure > Unit converter data structure factory function]
## Unit converter data structure factory function
While this works perfectly fine for a specific type of measurement, we have to repeat the whole process for a different type of measurement. This is not ideal, as we can end u... | code_snippets | ||
afd162af-ffd9-4605-bdd5-5174240a94dd | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/unit-converter-data-structure.md | unknown | 4e775e64-3cac-4415-80a6-f3298363ef0a | 1 | SemanticChunker@1.0.0 | 3aa21fa79c1399f20d72c7240cfa0e196c341d87cd1ad44c721cf2d24da22737 | [Class-based unit converter data structure]
## Class-based unit converter data structure
In its simplest form, any unit-based value is a **numeric value with a unit of measurement** attached to it. Converting from one unit to another is rather simple, so long as the **units are compatible** and you know the **convers... | unknown | unknown | [Class-based unit converter data structure]
## Class-based unit converter data structure
In its simplest form, any unit-based value is a **numeric value with a unit of measurement** attached to it. Converting from one unit to another is rather simple, so long as the **units are compatible** and you know the **convers... | [Class-based unit converter data structure]
## Class-based unit converter data structure
In its simplest form, any unit-based value is a **numeric value with a unit of measurement** attached to it. Converting from one unit to another is rather simple, so long as the **units are compatible** and you know the **convers... | code_snippets | ||
c18c93d9-5b49-44e4-9707-d81a9cb22548 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/unit-converter-data-structure.md | unknown | 4e775e64-3cac-4415-80a6-f3298363ef0a | 3 | SemanticChunker@1.0.0 | 6ba8c726d1f8cb98b8d2e0fd1618f41a97842b780a7a2c3f58feb51c49d7aef4 | [Class-based unit converter data structure > Unit converter data structure factory function]
While this works for **simple formulas**, something like [temperature conversion](/js/s/convert-celsius-fahrenheit) is a bit more complex. I'll not go into further detail here, but I'm sure you can easily figure out the necess... | unknown | unknown | [Class-based unit converter data structure > Unit converter data structure factory function]
While this works for **simple formulas**, something like [temperature conversion](/js/s/convert-celsius-fahrenheit) is a bit more complex. I'll not go into further detail here, but I'm sure you can easily figure out the necess... | [Class-based unit converter data structure > Unit converter data structure factory function]
While this works for **simple formulas**, something like [temperature conversion](/js/s/convert-celsius-fahrenheit) is a bit more complex. I'll not go into further detail here, but I'm sure you can easily figure out the necess... | code_snippets | ||
285336eb-86e5-40b5-957f-09de0da1cb5d | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/unique-values-in-array-remove-duplicates.md | unknown | 655e9bf6-3004-4d89-b52e-ef5810a41e44 | 1 | SemanticChunker@1.0.0 | 0dbf70e23e5cea033fec17e63e000a4b09a12d3cb633d76ab50be7be6dde8411 | [Get all unique values in an array]
## Get all unique values in an array
A `Set` **cannot contain duplicate values** and can be easily initialized from the values of an array. Then, as it is **iterable** in itself, we can use the spread operator (`...`) to convert it back to an array of just the unique values.
```js... | unknown | unknown | [Get all unique values in an array]
## Get all unique values in an array
A `Set` **cannot contain duplicate values** and can be easily initialized from the values of an array. Then, as it is **iterable** in itself, we can use the spread operator (`...`) to convert it back to an array of just the unique values.
```js... | [Get all unique values in an array]
## Get all unique values in an array
A `Set` **cannot contain duplicate values** and can be easily initialized from the values of an array. Then, as it is **iterable** in itself, we can use the spread operator (`...`) to convert it back to an array of just the unique values.
```js... | code_snippets | ||
4fc47f6f-a0b8-44ab-8fca-7d467b893b5c | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/unique-values-in-array-remove-duplicates.md | unknown | 655e9bf6-3004-4d89-b52e-ef5810a41e44 | 2 | SemanticChunker@1.0.0 | 0115fd0f93f21d816a6bd0c759d2b7a5652218eeb9ac86d6ed026f42588809e3 | [Get all unique values in an array > Check if an array contains duplicates]
## Check if an array contains duplicates
`Set` doesn't have a `length` property, but it does have a `size` property, instead. We can use this to check if an array contains duplicates.
```js
const hasDuplicates = arr => arr.length !== new Set... | unknown | unknown | [Get all unique values in an array > Check if an array contains duplicates]
## Check if an array contains duplicates
`Set` doesn't have a `length` property, but it does have a `size` property, instead. We can use this to check if an array contains duplicates.
```js
const hasDuplicates = arr => arr.length !== new Set... | [Get all unique values in an array > Check if an array contains duplicates]
## Check if an array contains duplicates
`Set` doesn't have a `length` property, but it does have a `size` property, instead. We can use this to check if an array contains duplicates.
```js
const hasDuplicates = arr => arr.length !== new Set... | code_snippets | ||
710204de-c74c-4c90-8498-2d6b7c2b7d5e | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/unique-values-in-array-remove-duplicates.md | unknown | 655e9bf6-3004-4d89-b52e-ef5810a41e44 | 3 | SemanticChunker@1.0.0 | 956a674292da2dc73094e976d971790a0661e8d78776eff0a67f28e2ffdb25c4 | [Get all unique values in an array > Remove array values that appear more than once]
## Remove array values that appear more than once
If we want to keep only values that are not duplicated, we can use the `Array.prototype.filter()` method. Elements that appear more than once have to appear in **at least two differen... | unknown | unknown | [Get all unique values in an array > Remove array values that appear more than once]
## Remove array values that appear more than once
If we want to keep only values that are not duplicated, we can use the `Array.prototype.filter()` method. Elements that appear more than once have to appear in **at least two differen... | [Get all unique values in an array > Remove array values that appear more than once]
## Remove array values that appear more than once
If we want to keep only values that are not duplicated, we can use the `Array.prototype.filter()` method. Elements that appear more than once have to appear in **at least two differen... | code_snippets | ||
c0a019bc-eeb2-49b1-9d84-adebf0943bd5 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/unique-values-in-array-remove-duplicates.md | unknown | 655e9bf6-3004-4d89-b52e-ef5810a41e44 | 4 | SemanticChunker@1.0.0 | 1473bdf032faf43e61c3184ef71624a75f785192f14b04922ebad8db908b5ff7 | [Get all unique values in an array > Using a function to find duplicates]
## Using a function to find duplicates
More complex data, such as objects, can't be compared using equality comparison, so we need to use a function to check for duplicates. `Set` objects are not much use here, so we can use `Array.prototype.re... | unknown | unknown | [Get all unique values in an array > Using a function to find duplicates]
## Using a function to find duplicates
More complex data, such as objects, can't be compared using equality comparison, so we need to use a function to check for duplicates. `Set` objects are not much use here, so we can use `Array.prototype.re... | [Get all unique values in an array > Using a function to find duplicates]
## Using a function to find duplicates
More complex data, such as objects, can't be compared using equality comparison, so we need to use a function to check for duplicates. `Set` objects are not much use here, so we can use `Array.prototype.re... | code_snippets | ||
e5e2e045-1a21-48c8-b5cc-e762a1a66f4f | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/unique-values-in-array-remove-duplicates.md | unknown | 655e9bf6-3004-4d89-b52e-ef5810a41e44 | 0 | SemanticChunker@1.0.0 | 77280b35796228670ba44329b56f4ee70c42be7f96e19192db8b2463aef430a9 | ---
title: Get all unique values in a JavaScript array & remove duplicates
shortTitle: Unique array values
language: javascript
tags: [array]
cover: architectural
excerpt: Easily remove duplicates from a JavaScript array using the built-in `Set` object, and learn a few other tricks along the way.
listed: true
dateModif... | unknown | unknown | ---
title: Get all unique values in a JavaScript array & remove duplicates
shortTitle: Unique array values
language: javascript
tags: [array]
cover: architectural
excerpt: Easily remove duplicates from a JavaScript array using the built-in `Set` object, and learn a few other tricks along the way.
listed: true
dateModif... | ---
title: Get all unique values in a JavaScript array & remove duplicates
shortTitle: Unique array values
language: javascript
tags: [array]
cover: architectural
excerpt: Easily remove duplicates from a JavaScript array using the built-in `Set` object, and learn a few other tricks along the way.
listed: true
dateModif... | code_snippets | ||
020e17fc-900e-4281-a5b3-6b3821da11df | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-from-edges.md | unknown | 5852327b-544e-4596-853c-f8293594a240 | 6 | SemanticChunker@1.0.0 | 38189fbb59965aa30e47738e3b34c07f497ecf02bf465955accf694db0c9af7d | [Building the tree > Reachable nodes]
### Reachable nodes
In the same vein, if you need to find all reachable nodes from a given node, you can **store all reachable nodes**, including the node itself. This is particularly useful for problems that require you to find all nodes within a certain distance from a starting... | unknown | unknown | [Building the tree > Reachable nodes]
### Reachable nodes
In the same vein, if you need to find all reachable nodes from a given node, you can **store all reachable nodes**, including the node itself. This is particularly useful for problems that require you to find all nodes within a certain distance from a starting... | [Building the tree > Reachable nodes]
### Reachable nodes
In the same vein, if you need to find all reachable nodes from a given node, you can **store all reachable nodes**, including the node itself. This is particularly useful for problems that require you to find all nodes within a certain distance from a starting... | code_snippets | ||
3a83bd70-b9fe-4ae6-9a7c-fd270acfd86c | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-from-edges.md | unknown | 5852327b-544e-4596-853c-f8293594a240 | 5 | SemanticChunker@1.0.0 | 219ac892574b336cc74dd5cedd1d5d102aa1f36692d29b1b145327e540d8ce96 | [Building the tree > Parent and children]
### Parent and children
When you need to traverse the tree in both directions, it can be useful to **store both the node's parent and children**. This allows you to easily navigate the tree in either direction, which can be helpful for certain algorithms or when you need to f... | unknown | unknown | [Building the tree > Parent and children]
### Parent and children
When you need to traverse the tree in both directions, it can be useful to **store both the node's parent and children**. This allows you to easily navigate the tree in either direction, which can be helpful for certain algorithms or when you need to f... | [Building the tree > Parent and children]
### Parent and children
When you need to traverse the tree in both directions, it can be useful to **store both the node's parent and children**. This allows you to easily navigate the tree in either direction, which can be helpful for certain algorithms or when you need to f... | code_snippets | ||
3f39858c-f6fa-49cc-8a0d-bb93ca176583 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-from-edges.md | unknown | 5852327b-544e-4596-853c-f8293594a240 | 2 | SemanticChunker@1.0.0 | 8ce2863d95eae4aa861e95bcf63f004abe29ba4f41d675f76e85953af58aeb65 | [Undirected trees > Building the tree]
## Building the tree
In most cases, one can simply get away without creating a full data structure, like we've done in the [previous article](/js/s/data-structures-tree), but rather use a simple `Map` to represent the edges in a usable way. Each node will be a map key, and the c... | unknown | unknown | [Undirected trees > Building the tree]
## Building the tree
In most cases, one can simply get away without creating a full data structure, like we've done in the [previous article](/js/s/data-structures-tree), but rather use a simple `Map` to represent the edges in a usable way. Each node will be a map key, and the c... | [Undirected trees > Building the tree]
## Building the tree
In most cases, one can simply get away without creating a full data structure, like we've done in the [previous article](/js/s/data-structures-tree), but rather use a simple `Map` to represent the edges in a usable way. Each node will be a map key, and the c... | code_snippets | ||
5de49310-7700-4477-87c7-89239e0d57ea | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-from-edges.md | unknown | 5852327b-544e-4596-853c-f8293594a240 | 3 | SemanticChunker@1.0.0 | 99a8ff4b2c942fb3987349f6d5de95b451c91c9ab7f0803fffb2266292fbe450 | [Building the tree > Children]
### Children
By far the most common strategy is **storing only the node's children**. This allows us to easily traverse the tree downwards, which is often the most useful direction for many algorithms.
```js
const edgesToChildGraph = edges =>
edges.reduce((acc, [a, b]) => {
if (!acc.... | unknown | unknown | [Building the tree > Children]
### Children
By far the most common strategy is **storing only the node's children**. This allows us to easily traverse the tree downwards, which is often the most useful direction for many algorithms.
```js
const edgesToChildGraph = edges =>
edges.reduce((acc, [a, b]) => {
if (!acc.... | [Building the tree > Children]
### Children
By far the most common strategy is **storing only the node's children**. This allows us to easily traverse the tree downwards, which is often the most useful direction for many algorithms.
```js
const edgesToChildGraph = edges =>
edges.reduce((acc, [a, b]) => {
if (!acc.... | code_snippets | ||
7b0025f4-64c8-4cc9-b9d4-6533811cbf1d | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-from-edges.md | unknown | 5852327b-544e-4596-853c-f8293594a240 | 4 | SemanticChunker@1.0.0 | 3b101c36c31a2a6cd42a132a1fa4d706ab11a499c2bbaf1cc2cb42dabe84dfd3 | [Building the tree > Parent]
### Parent
When you need to traverse the tree upwards, it can be useful to **store only the node's parent**. This allows you to easily find the parent of any given node, which can be helpful in certain algorithms or when you need to backtrack.
```js
const edgesToParentGraph = edges =>
e... | unknown | unknown | [Building the tree > Parent]
### Parent
When you need to traverse the tree upwards, it can be useful to **store only the node's parent**. This allows you to easily find the parent of any given node, which can be helpful in certain algorithms or when you need to backtrack.
```js
const edgesToParentGraph = edges =>
e... | [Building the tree > Parent]
### Parent
When you need to traverse the tree upwards, it can be useful to **store only the node's parent**. This allows you to easily find the parent of any given node, which can be helpful in certain algorithms or when you need to backtrack.
```js
const edgesToParentGraph = edges =>
e... | code_snippets | ||
845c8735-189e-44aa-8d7f-68dde2412ac4 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-from-edges.md | unknown | 5852327b-544e-4596-853c-f8293594a240 | 0 | SemanticChunker@1.0.0 | f512c62357c3ccbcb00fd7a5281df0decc27fe7175a0bb5c9f330f40ebcda5e4 | ---
title: How can I build an undirected tree from an array of edges in JavaScript?
shortTitle: Undirected tree from edges
language: javascript
tags: [array]
cover: walking-sunrise
excerpt: Learn how to build an undirected tree from an array of edges in JavaScript, with various approaches for storing node relationships... | unknown | unknown | ---
title: How can I build an undirected tree from an array of edges in JavaScript?
shortTitle: Undirected tree from edges
language: javascript
tags: [array]
cover: walking-sunrise
excerpt: Learn how to build an undirected tree from an array of edges in JavaScript, with various approaches for storing node relationships... | ---
title: How can I build an undirected tree from an array of edges in JavaScript?
shortTitle: Undirected tree from edges
language: javascript
tags: [array]
cover: walking-sunrise
excerpt: Learn how to build an undirected tree from an array of edges in JavaScript, with various approaches for storing node relationships... | code_snippets | ||
9432d7c5-00a0-4deb-a524-d906f7788012 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-from-edges.md | unknown | 5852327b-544e-4596-853c-f8293594a240 | 7 | SemanticChunker@1.0.0 | 970d3bcd345bb3a41ddd97c3c5a6d8dc8ba7f1e2213f2317678c020f419d2349 | [Undirected trees > Conclusion]
## Conclusion
Building an undirected tree from an array of edges in JavaScript can be done in various ways, depending on your specific needs. Whether you need to traverse the tree downwards, upwards, or in both directions, you can choose the appropriate structure to represent the tree.... | unknown | unknown | [Undirected trees > Conclusion]
## Conclusion
Building an undirected tree from an array of edges in JavaScript can be done in various ways, depending on your specific needs. Whether you need to traverse the tree downwards, upwards, or in both directions, you can choose the appropriate structure to represent the tree.... | [Undirected trees > Conclusion]
## Conclusion
Building an undirected tree from an array of edges in JavaScript can be done in various ways, depending on your specific needs. Whether you need to traverse the tree downwards, upwards, or in both directions, you can choose the appropriate structure to represent the tree.... | code_snippets | ||
97580cd0-ec60-4360-a50a-0e039aa2ffa4 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-from-edges.md | unknown | 5852327b-544e-4596-853c-f8293594a240 | 1 | SemanticChunker@1.0.0 | 11ad84d162b0ae7a309fb58a0fd93f857b1322e636a7c5af51eb53acf41f6e85 | [Undirected trees]
## Undirected trees
Before we delve into the code, I'd like to note that, for a tree with `n` **vertices**, the number of **edges** is exactly `n - 1`. This is a fundamental property of trees, and it helps us ensure that we are indeed building a **valid tree structure**. It can also help us allocat... | unknown | unknown | [Undirected trees]
## Undirected trees
Before we delve into the code, I'd like to note that, for a tree with `n` **vertices**, the number of **edges** is exactly `n - 1`. This is a fundamental property of trees, and it helps us ensure that we are indeed building a **valid tree structure**. It can also help us allocat... | [Undirected trees]
## Undirected trees
Before we delve into the code, I'd like to note that, for a tree with `n` **vertices**, the number of **edges** is exactly `n - 1`. This is a fundamental property of trees, and it helps us ensure that we are indeed building a **valid tree structure**. It can also help us allocat... | code_snippets | ||
512dbbe8-ce3e-4801-87bc-f7bc578cb6e1 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-diameter.md | unknown | 0901cf96-c08d-4b82-850b-0da42ec172ee | 3 | SemanticChunker@1.0.0 | aee73f9bfc5c0ca1327d6ceef2a246e2d2d31db107b8cbe29daa937a7712b0bd | [Diameter of an undirected tree > Implementation]
```
As you can see, with a few small tweaks to our DFS implementation, we can efficiently find the diameter of an undirected tree. The **first pass** finds the farthest node from the starting node, using the distance to track how far we are from the starting point.
W... | unknown | unknown | [Diameter of an undirected tree > Implementation]
```
As you can see, with a few small tweaks to our DFS implementation, we can efficiently find the diameter of an undirected tree. The **first pass** finds the farthest node from the starting node, using the distance to track how far we are from the starting point.
W... | [Diameter of an undirected tree > Implementation]
```
As you can see, with a few small tweaks to our DFS implementation, we can efficiently find the diameter of an undirected tree. The **first pass** finds the farthest node from the starting node, using the distance to track how far we are from the starting point.
W... | code_snippets | ||
530e17f6-9f11-4798-9292-a2c933a50dba | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-diameter.md | unknown | 0901cf96-c08d-4b82-850b-0da42ec172ee | 1 | SemanticChunker@1.0.0 | f91c68e4d91a93878bb6c79d78bec08d195b3000a80972664646762e118d6924 | [Diameter of an undirected tree]
## Diameter of an undirected tree
The diameter of an undirected tree is defined as the **longest path between any two nodes** in the tree. In other words, it's the **maximum number of edges** that need to be traversed to go from one node to another in the tree. Let's look at an exampl... | unknown | unknown | [Diameter of an undirected tree]
## Diameter of an undirected tree
The diameter of an undirected tree is defined as the **longest path between any two nodes** in the tree. In other words, it's the **maximum number of edges** that need to be traversed to go from one node to another in the tree. Let's look at an exampl... | [Diameter of an undirected tree]
## Diameter of an undirected tree
The diameter of an undirected tree is defined as the **longest path between any two nodes** in the tree. In other words, it's the **maximum number of edges** that need to be traversed to go from one node to another in the tree. Let's look at an exampl... | code_snippets | ||
a270a1f5-2765-4640-bdc6-3e13d0f6747b | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-diameter.md | unknown | 0901cf96-c08d-4b82-850b-0da42ec172ee | 2 | SemanticChunker@1.0.0 | e7c34d0236ba9fda3c2f4a007e4085063dfe52603ac4c3df85afc51f9d9c534b | [Diameter of an undirected tree > Implementation]
## Implementation
To find the diameter of an undirected tree, we can use a **two-pass DFS approach**. The first pass will find the **farthest node from an arbitrary starting node**, and the second pass will find the **farthest node from that node**, which will give us... | unknown | unknown | [Diameter of an undirected tree > Implementation]
## Implementation
To find the diameter of an undirected tree, we can use a **two-pass DFS approach**. The first pass will find the **farthest node from an arbitrary starting node**, and the second pass will find the **farthest node from that node**, which will give us... | [Diameter of an undirected tree > Implementation]
## Implementation
To find the diameter of an undirected tree, we can use a **two-pass DFS approach**. The first pass will find the **farthest node from an arbitrary starting node**, and the second pass will find the **farthest node from that node**, which will give us... | code_snippets | ||
ac1a78a0-1141-4243-ac87-9ce158efffd5 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/undirected-tree-diameter.md | unknown | 0901cf96-c08d-4b82-850b-0da42ec172ee | 0 | SemanticChunker@1.0.0 | b0d1c11af4689194256921c49df1988dcf34f5c9ddc8d43e4a99b5f533527b9c | ---
title: How can I find the diameter of an undirected tree in JavaScript?
shortTitle: Undirected tree diameter
language: javascript
tags: [algorithm,array]
cover: laptop-off-2
excerpt: Using a two-pass DFS approach, we can efficiently find the diameter of an undirected tree in JavaScript.
listed: true
dateModified: 2... | unknown | unknown | ---
title: How can I find the diameter of an undirected tree in JavaScript?
shortTitle: Undirected tree diameter
language: javascript
tags: [algorithm,array]
cover: laptop-off-2
excerpt: Using a two-pass DFS approach, we can efficiently find the diameter of an undirected tree in JavaScript.
listed: true
dateModified: 2... | ---
title: How can I find the diameter of an undirected tree in JavaScript?
shortTitle: Undirected tree diameter
language: javascript
tags: [algorithm,array]
cover: laptop-off-2
excerpt: Using a two-pass DFS approach, we can efficiently find the diameter of an undirected tree in JavaScript.
listed: true
dateModified: 2... | code_snippets |
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