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82b9ee7b-4efb-43fb-a697-330e9847e5b6 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/math-expression-tokenizer.md | unknown | 2b648894-b6f9-4ec0-b337-cd2bed3a53c3 | 2 | SemanticChunker@1.0.0 | 606c4c041c014fa4c4722644de929f6167e14225a0092c594d3681d85140a2aa | [Introduction > Integers and operators]
## Integers and operators
At its most basic form, a tokenizer reads an **input** (in this case a string) **one character at a time** and **groups them into tokens**. We'll start as simple as possible, implementing the tokenization of integers and operators.
```js
const TOKEN_T... | unknown | unknown | [Introduction > Integers and operators]
## Integers and operators
At its most basic form, a tokenizer reads an **input** (in this case a string) **one character at a time** and **groups them into tokens**. We'll start as simple as possible, implementing the tokenization of integers and operators.
```js
const TOKEN_T... | [Introduction > Integers and operators]
## Integers and operators
At its most basic form, a tokenizer reads an **input** (in this case a string) **one character at a time** and **groups them into tokens**. We'll start as simple as possible, implementing the tokenization of integers and operators.
```js
const TOKEN_T... | code_snippets | ||
900099a7-f822-4724-a778-a19e28da59c2 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/math-expression-tokenizer.md | unknown | 2b648894-b6f9-4ec0-b337-cd2bed3a53c3 | 5 | SemanticChunker@1.0.0 | 3a939b1ef7da9cb8889b7ab308359d9d3ed8b88a0a8665304975b0e434f4da9d | [Introduction > Parentheses]
## Parentheses
The next step is to add support for parentheses. We'll treat them as separate tokens, as they're used to group expressions. We'll not be adding any **validation** for now, but you can read more about this problem in the [article about bracket pair matching](/js/s/find-match... | unknown | unknown | [Introduction > Parentheses]
## Parentheses
The next step is to add support for parentheses. We'll treat them as separate tokens, as they're used to group expressions. We'll not be adding any **validation** for now, but you can read more about this problem in the [article about bracket pair matching](/js/s/find-match... | [Introduction > Parentheses]
## Parentheses
The next step is to add support for parentheses. We'll treat them as separate tokens, as they're used to group expressions. We'll not be adding any **validation** for now, but you can read more about this problem in the [article about bracket pair matching](/js/s/find-match... | code_snippets | ||
982c0006-de0f-41cd-aee1-3f624db7e3e6 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/math-expression-tokenizer.md | unknown | 2b648894-b6f9-4ec0-b337-cd2bed3a53c3 | 9 | SemanticChunker@1.0.0 | 21bb8e6260ab844fa6e2d8a031634fdd555567303c5bbb77a1466f3efe8d53c1 | [Introduction > Negative numbers]
```js
// [continued: part 1]
const tokenize = expression => {
const tokens = [];
let buffer = '';
// Flush the buffer, if it contains a valid number token
const flushBuffer = () => {
if (!buffer.length) return;
const bufferValue = Number.parseFloat(buffer);
if (Number.isNaN(b... | unknown | unknown | [Introduction > Negative numbers]
```js
// [continued: part 1]
const tokenize = expression => {
const tokens = [];
let buffer = '';
// Flush the buffer, if it contains a valid number token
const flushBuffer = () => {
if (!buffer.length) return;
const bufferValue = Number.parseFloat(buffer);
if (Number.isNaN(b... | [Introduction > Negative numbers]
```js
// [continued: part 1]
const tokenize = expression => {
const tokens = [];
let buffer = '';
// Flush the buffer, if it contains a valid number token
const flushBuffer = () => {
if (!buffer.length) return;
const bufferValue = Number.parseFloat(buffer);
if (Number.isNaN(b... | code_snippets | ||
a4874ace-ec0c-4abd-8dd5-0b446f1af245 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/math-expression-tokenizer.md | unknown | 2b648894-b6f9-4ec0-b337-cd2bed3a53c3 | 6 | SemanticChunker@1.0.0 | 33ed7b8ffa0dda88ae98318e251b77bcefefd1bdcdc4f9a2154d7863ae94b3a4 | [Introduction > Parentheses]
```js
const TOKEN_TYPES = {
NUMBER: 'NUMBER',
OPERATOR: {
'+': 'OP_ADD',
'-': 'OP_SUBTRACT',
'*': 'OP_MULTIPLY',
'/': 'OP_DIVIDE',
},
PARENTHESIS: {
'(': 'PAREN_OPEN',
')': 'PAREN_CLOSE',
}
};
const OPERATORS = Object.keys(TOKEN_TYPES.OPERATOR);
const PARENTHESES = Object.keys(... | unknown | unknown | [Introduction > Parentheses]
```js
const TOKEN_TYPES = {
NUMBER: 'NUMBER',
OPERATOR: {
'+': 'OP_ADD',
'-': 'OP_SUBTRACT',
'*': 'OP_MULTIPLY',
'/': 'OP_DIVIDE',
},
PARENTHESIS: {
'(': 'PAREN_OPEN',
')': 'PAREN_CLOSE',
}
};
const OPERATORS = Object.keys(TOKEN_TYPES.OPERATOR);
const PARENTHESES = Object.keys(... | [Introduction > Parentheses]
```js
const TOKEN_TYPES = {
NUMBER: 'NUMBER',
OPERATOR: {
'+': 'OP_ADD',
'-': 'OP_SUBTRACT',
'*': 'OP_MULTIPLY',
'/': 'OP_DIVIDE',
},
PARENTHESIS: {
'(': 'PAREN_OPEN',
')': 'PAREN_CLOSE',
}
};
const OPERATORS = Object.keys(TOKEN_TYPES.OPERATOR);
const PARENTHESES = Object.keys(... | code_snippets | ||
b3d7988d-0354-473c-afd9-3ff5ba6610aa | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/math-expression-tokenizer.md | unknown | 2b648894-b6f9-4ec0-b337-cd2bed3a53c3 | 1 | SemanticChunker@1.0.0 | 54dfe10743de5d7f80486be40631321c619df08490fa3fa6e750ec5988ef9b26 | [Introduction]
## Introduction
In the context of a math expression, a **token** is a **single unit of the expression**. It can be a number, an operator, a parenthesis, or any other symbol that makes up the expression. For example, in the expression `3 + 4`, the tokens are `3`, `+`, and `4`. **Tokens can span multiple... | unknown | unknown | [Introduction]
## Introduction
In the context of a math expression, a **token** is a **single unit of the expression**. It can be a number, an operator, a parenthesis, or any other symbol that makes up the expression. For example, in the expression `3 + 4`, the tokens are `3`, `+`, and `4`. **Tokens can span multiple... | [Introduction]
## Introduction
In the context of a math expression, a **token** is a **single unit of the expression**. It can be a number, an operator, a parenthesis, or any other symbol that makes up the expression. For example, in the expression `3 + 4`, the tokens are `3`, `+`, and `4`. **Tokens can span multiple... | code_snippets | ||
b6e0f7fc-4fac-4958-832c-20c0e03dcd87 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/math-expression-tokenizer.md | unknown | 2b648894-b6f9-4ec0-b337-cd2bed3a53c3 | 7 | SemanticChunker@1.0.0 | b4cf2b3999d59ac658eb626c52b4c982d4d882c65eba08a34a5e140b9f748b4d | [Introduction > Parentheses]
Now, our tokenizer correctly handles parentheses, but won't validate if they're paired.
```js
tokenize('(3 + 4) * 5');
// [
// { type: 'PAREN_OPEN' },
// { type: 'NUMBER', value: 3 },
// { type: 'OP_ADD' },
// { type: 'NUMBER', value: 4 },
// { type: 'PAREN_CLOSE' },
// { type: 'OP_MULTIP... | unknown | unknown | [Introduction > Parentheses]
Now, our tokenizer correctly handles parentheses, but won't validate if they're paired.
```js
tokenize('(3 + 4) * 5');
// [
// { type: 'PAREN_OPEN' },
// { type: 'NUMBER', value: 3 },
// { type: 'OP_ADD' },
// { type: 'NUMBER', value: 4 },
// { type: 'PAREN_CLOSE' },
// { type: 'OP_MULTIP... | [Introduction > Parentheses]
Now, our tokenizer correctly handles parentheses, but won't validate if they're paired.
```js
tokenize('(3 + 4) * 5');
// [
// { type: 'PAREN_OPEN' },
// { type: 'NUMBER', value: 3 },
// { type: 'OP_ADD' },
// { type: 'NUMBER', value: 4 },
// { type: 'PAREN_CLOSE' },
// { type: 'OP_MULTIP... | code_snippets | ||
c5f2dddb-634d-4a1b-a385-06d9e2125aa8 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/math-expression-tokenizer.md | unknown | 2b648894-b6f9-4ec0-b337-cd2bed3a53c3 | 10 | SemanticChunker@1.0.0 | 48ea186828b0bf129f79846f9f0f7c13e523d4cea523c397dc10d3faee8cf266 | [Introduction > Negative numbers]
Notice that the check for the negative sign may result in the `lastToken` indicating it's **not a negative sign** and continue to the operator check. This is intentional, so that both cases can be handled without problems.
While the logic for the negative numbers may seem a little co... | unknown | unknown | [Introduction > Negative numbers]
Notice that the check for the negative sign may result in the `lastToken` indicating it's **not a negative sign** and continue to the operator check. This is intentional, so that both cases can be handled without problems.
While the logic for the negative numbers may seem a little co... | [Introduction > Negative numbers]
Notice that the check for the negative sign may result in the `lastToken` indicating it's **not a negative sign** and continue to the operator check. This is intentional, so that both cases can be handled without problems.
While the logic for the negative numbers may seem a little co... | code_snippets | ||
dadb1411-8080-4e97-b28c-45fa04351d7e | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/math-expression-tokenizer.md | unknown | 2b648894-b6f9-4ec0-b337-cd2bed3a53c3 | 8 | SemanticChunker@1.0.0 | 0841a845e829c89bb3c0c66906183921db31437b2aa3e0ee78196f0f12e57245 | [Introduction > Negative numbers]
## Negative numbers
Up until this point, we've only been handling positive numbers. To support negative numbers, we need to **differentiate between a subtraction operator and a negative sign**. We'll do this by checking if the `-` character is preceded by an operator, a parenthesis, ... | unknown | unknown | [Introduction > Negative numbers]
## Negative numbers
Up until this point, we've only been handling positive numbers. To support negative numbers, we need to **differentiate between a subtraction operator and a negative sign**. We'll do this by checking if the `-` character is preceded by an operator, a parenthesis, ... | [Introduction > Negative numbers]
## Negative numbers
Up until this point, we've only been handling positive numbers. To support negative numbers, we need to **differentiate between a subtraction operator and a negative sign**. We'll do this by checking if the `-` character is preceded by an operator, a parenthesis, ... | code_snippets | ||
dc91e54d-be05-4527-bf4d-bbb2a0dcecbf | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/math-expression-tokenizer.md | unknown | 2b648894-b6f9-4ec0-b337-cd2bed3a53c3 | 3 | SemanticChunker@1.0.0 | c6757b28b3222d4a332c6f5a4f5fc268c355e9ff35e9c12bf42c8b55c4cdfda7 | [Introduction > Floating point numbers]
## Floating point numbers
Our current implementation will throw an error if there's even a single **unknown character**. The `.` character, used for floating point numbers, will trigger this error, too.
```js
tokenize('3.14 + 4');
// Error: Invalid character: .
```
Thus, in o... | unknown | unknown | [Introduction > Floating point numbers]
## Floating point numbers
Our current implementation will throw an error if there's even a single **unknown character**. The `.` character, used for floating point numbers, will trigger this error, too.
```js
tokenize('3.14 + 4');
// Error: Invalid character: .
```
Thus, in o... | [Introduction > Floating point numbers]
## Floating point numbers
Our current implementation will throw an error if there's even a single **unknown character**. The `.` character, used for floating point numbers, will trigger this error, too.
```js
tokenize('3.14 + 4');
// Error: Invalid character: .
```
Thus, in o... | code_snippets | ||
39d65ba3-3382-45ef-a04c-0d1c464b371e | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/midpoint.md | unknown | 1303ce41-e85e-42e9-bd6d-e9e4ea8b20ad | 2 | SemanticChunker@1.0.0 | eefb4603d2aaadddc1d7714274dd54f1c3d40aa9a828b64f3bcf61f5678c3ec0 | [Midpoint in 2D space > Midpoint in 3D space]
## Midpoint in 3D space
This operation can be easily to extended to **3D space** by adding a third dimension to the input arrays and the output array.
```js
const midpoint3D = ([x1, y1, z1], [x2, y2, z2]) => [
(x1 + x2) / 2,
(y1 + y2) / 2,
(z1 + z2) / 2,
];
midpoint3... | unknown | unknown | [Midpoint in 2D space > Midpoint in 3D space]
## Midpoint in 3D space
This operation can be easily to extended to **3D space** by adding a third dimension to the input arrays and the output array.
```js
const midpoint3D = ([x1, y1, z1], [x2, y2, z2]) => [
(x1 + x2) / 2,
(y1 + y2) / 2,
(z1 + z2) / 2,
];
midpoint3... | [Midpoint in 2D space > Midpoint in 3D space]
## Midpoint in 3D space
This operation can be easily to extended to **3D space** by adding a third dimension to the input arrays and the output array.
```js
const midpoint3D = ([x1, y1, z1], [x2, y2, z2]) => [
(x1 + x2) / 2,
(y1 + y2) / 2,
(z1 + z2) / 2,
];
midpoint3... | code_snippets | ||
727b797f-8349-49e8-8878-b77a48d94ff9 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/midpoint.md | unknown | 1303ce41-e85e-42e9-bd6d-e9e4ea8b20ad | 0 | SemanticChunker@1.0.0 | 05c426d60e4b1165ca30264d49daec1c841792c95de21d5b53820f0c64499f51 | ---
title: Midpoint of two points
shortTitle: Midpoint
language: javascript
tags: [math]
cover: blue-flower
excerpt: Calculate the midpoint between two pairs of points in a 2D plane, and beyond.
listed: true
dateModified: 2024-05-15
---
Given two points in a **2D plane**, you can calculate the midpoint between them by... | unknown | unknown | ---
title: Midpoint of two points
shortTitle: Midpoint
language: javascript
tags: [math]
cover: blue-flower
excerpt: Calculate the midpoint between two pairs of points in a 2D plane, and beyond.
listed: true
dateModified: 2024-05-15
---
Given two points in a **2D plane**, you can calculate the midpoint between them by... | ---
title: Midpoint of two points
shortTitle: Midpoint
language: javascript
tags: [math]
cover: blue-flower
excerpt: Calculate the midpoint between two pairs of points in a 2D plane, and beyond.
listed: true
dateModified: 2024-05-15
---
Given two points in a **2D plane**, you can calculate the midpoint between them by... | code_snippets | ||
86f8d0db-4c81-49aa-9b3b-ee2ec30f5ffe | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/midpoint.md | unknown | 1303ce41-e85e-42e9-bd6d-e9e4ea8b20ad | 3 | SemanticChunker@1.0.0 | 8d281b5eef87c8893d9dfd7c1941602851a0043df3f84d5e19be0fb142bf8158 | [Midpoint in 2D space > Midpoint in N-dimensional space]
## Midpoint in N-dimensional space
In fact, you can extend this operation to **any number of dimensions** by adding more elements to the input arrays and the output array. The formula remains the same, but you will have to use `Array.prototype.map()` to iterate... | unknown | unknown | [Midpoint in 2D space > Midpoint in N-dimensional space]
## Midpoint in N-dimensional space
In fact, you can extend this operation to **any number of dimensions** by adding more elements to the input arrays and the output array. The formula remains the same, but you will have to use `Array.prototype.map()` to iterate... | [Midpoint in 2D space > Midpoint in N-dimensional space]
## Midpoint in N-dimensional space
In fact, you can extend this operation to **any number of dimensions** by adding more elements to the input arrays and the output array. The formula remains the same, but you will have to use `Array.prototype.map()` to iterate... | code_snippets | ||
9899737c-8e12-4e79-a433-ca3a1f2b3c4c | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/midpoint.md | unknown | 1303ce41-e85e-42e9-bd6d-e9e4ea8b20ad | 1 | SemanticChunker@1.0.0 | 9a4561eac15e93fd1f59072b427be8d2f887e8af2cb476cd724d4855e0299a40 | [Midpoint in 2D space]
## Midpoint in 2D space
First off, you can use **array destructuring** to extract the x and y coordinates of the two points from the input arrays. Then, you can calculate the midpoint for each dimension by adding the two endpoints and dividing the result by 2.
```js
const midpoint = ([x1, y1],... | unknown | unknown | [Midpoint in 2D space]
## Midpoint in 2D space
First off, you can use **array destructuring** to extract the x and y coordinates of the two points from the input arrays. Then, you can calculate the midpoint for each dimension by adding the two endpoints and dividing the result by 2.
```js
const midpoint = ([x1, y1],... | [Midpoint in 2D space]
## Midpoint in 2D space
First off, you can use **array destructuring** to extract the x and y coordinates of the two points from the input arrays. Then, you can calculate the midpoint for each dimension by adding the two endpoints and dividing the result by 2.
```js
const midpoint = ([x1, y1],... | code_snippets | ||
f8e41cca-8d98-43af-b221-fdf4a2360a28 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/min-max-date.md | unknown | afa25afc-a7df-4718-aa56-a8484ff337fd | 0 | SemanticChunker@1.0.0 | bc8afc87f6bf7f002067f09024db3e8212585b0992439f3193967d9d29b029f1 | ---
title: Find the minimum or maximum date using JavaScript
shortTitle: Min or max date
language: javascript
tags: [date]
cover: interior-2
excerpt: Quickly find the minimum or maximum date in an array of dates.
listed: true
dateModified: 2024-01-06
---
At a fundamental level, JavaScript `Date` objects are **just num... | unknown | unknown | ---
title: Find the minimum or maximum date using JavaScript
shortTitle: Min or max date
language: javascript
tags: [date]
cover: interior-2
excerpt: Quickly find the minimum or maximum date in an array of dates.
listed: true
dateModified: 2024-01-06
---
At a fundamental level, JavaScript `Date` objects are **just num... | ---
title: Find the minimum or maximum date using JavaScript
shortTitle: Min or max date
language: javascript
tags: [date]
cover: interior-2
excerpt: Quickly find the minimum or maximum date in an array of dates.
listed: true
dateModified: 2024-01-06
---
At a fundamental level, JavaScript `Date` objects are **just num... | code_snippets | ||
5e5c218c-b0b8-4944-b436-00a097f79984 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/merge-sort.md | unknown | 004d393c-fdda-48eb-a28f-becb7b255d89 | 2 | SemanticChunker@1.0.0 | f119ae92a19775f059cb23d7e793b8de29be73c6ccbb4682d7c59203fda07176 | [Definition > Implementation]
## Implementation
- Use recursion.
- If the `length` of the array is less than `2`, return the array.
- Use `Math.floor()` to calculate the middle point of the array.
- Use `Array.prototype.slice()` to slice the array in two and recursively call `mergeSort()` on the created subarrays.
- ... | unknown | unknown | [Definition > Implementation]
## Implementation
- Use recursion.
- If the `length` of the array is less than `2`, return the array.
- Use `Math.floor()` to calculate the middle point of the array.
- Use `Array.prototype.slice()` to slice the array in two and recursively call `mergeSort()` on the created subarrays.
- ... | [Definition > Implementation]
## Implementation
- Use recursion.
- If the `length` of the array is less than `2`, return the array.
- Use `Math.floor()` to calculate the middle point of the array.
- Use `Array.prototype.slice()` to slice the array in two and recursively call `mergeSort()` on the created subarrays.
- ... | code_snippets | ||
6e5b58af-0119-4577-877a-83d20f52e2f8 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/merge-sort.md | unknown | 004d393c-fdda-48eb-a28f-becb7b255d89 | 1 | SemanticChunker@1.0.0 | 337b3d2a3ba8b622f2090a46d8780661899c984740686527ae51379e4ce38320 | [Definition]
## Definition
[Merge sort](https://en.wikipedia.org/wiki/Merge_sort) is an **efficient, general-purpose, comparison-based sorting algorithm**. Merge sort is a **divide and conquer algorithm**, based on the idea of breaking down a array into several subarrays until each one consists of a single element an... | unknown | unknown | [Definition]
## Definition
[Merge sort](https://en.wikipedia.org/wiki/Merge_sort) is an **efficient, general-purpose, comparison-based sorting algorithm**. Merge sort is a **divide and conquer algorithm**, based on the idea of breaking down a array into several subarrays until each one consists of a single element an... | [Definition]
## Definition
[Merge sort](https://en.wikipedia.org/wiki/Merge_sort) is an **efficient, general-purpose, comparison-based sorting algorithm**. Merge sort is a **divide and conquer algorithm**, based on the idea of breaking down a array into several subarrays until each one consists of a single element an... | code_snippets | ||
cc808871-ee73-48c3-a400-2ba890dc45ac | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/merge-sort.md | unknown | 004d393c-fdda-48eb-a28f-becb7b255d89 | 0 | SemanticChunker@1.0.0 | 4a225155f7384b0d5a36b19e741a277626a5a158f1602417738d46512ad290b2 | ---
title: Merge sort
language: javascript
tags: [algorithm,array,recursion]
cover: balloons-field
excerpt: Sort an array of numbers, using the merge sort algorithm.
listed: true
dateModified: 2023-12-16
--- | unknown | unknown | ---
title: Merge sort
language: javascript
tags: [algorithm,array,recursion]
cover: balloons-field
excerpt: Sort an array of numbers, using the merge sort algorithm.
listed: true
dateModified: 2023-12-16
--- | ---
title: Merge sort
language: javascript
tags: [algorithm,array,recursion]
cover: balloons-field
excerpt: Sort an array of numbers, using the merge sort algorithm.
listed: true
dateModified: 2023-12-16
--- | code_snippets | ||
38e756e0-fddf-48f6-a1de-e2667c7f4c64 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/merge-objects.md | unknown | d7f74017-06c0-4418-bb91-d1a74f6e90c5 | 1 | SemanticChunker@1.0.0 | 81ab53fe0d685045466e0a81f38116032e32891f15987a164249b5f713bc4055 | [Built-in methods]
## Built-in methods
Both the spread operator (`...`) and `Object.assign()` can be used to merge two or more objects into a single object. However, these methods only perform a **shallow merge**, meaning that nested objects are not merged. They also have the drawback of **overwriting properties with... | unknown | unknown | [Built-in methods]
## Built-in methods
Both the spread operator (`...`) and `Object.assign()` can be used to merge two or more objects into a single object. However, these methods only perform a **shallow merge**, meaning that nested objects are not merged. They also have the drawback of **overwriting properties with... | [Built-in methods]
## Built-in methods
Both the spread operator (`...`) and `Object.assign()` can be used to merge two or more objects into a single object. However, these methods only perform a **shallow merge**, meaning that nested objects are not merged. They also have the drawback of **overwriting properties with... | code_snippets | ||
a5b4c01f-7c4f-4486-8488-232639ddea6a | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/merge-objects.md | unknown | d7f74017-06c0-4418-bb91-d1a74f6e90c5 | 2 | SemanticChunker@1.0.0 | 6c5f73c7b315458e0710af04c77d410ae99e2ce32317c445df727b36a582838f | [Built-in methods > Combining values with the same key]
## Combining values with the same key
Instead of overwriting properties with the same key, we usually want to combine their values. This can be done by **checking if the key already exists** in the resulting object and appending the value to an array if it does.... | unknown | unknown | [Built-in methods > Combining values with the same key]
## Combining values with the same key
Instead of overwriting properties with the same key, we usually want to combine their values. This can be done by **checking if the key already exists** in the resulting object and appending the value to an array if it does.... | [Built-in methods > Combining values with the same key]
## Combining values with the same key
Instead of overwriting properties with the same key, we usually want to combine their values. This can be done by **checking if the key already exists** in the resulting object and appending the value to an array if it does.... | code_snippets | ||
a5f13bf7-4d6a-4c90-9b39-5daff4bcdd72 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/merge-objects.md | unknown | d7f74017-06c0-4418-bb91-d1a74f6e90c5 | 0 | SemanticChunker@1.0.0 | ae79a3db9583ede74f2405d75b779277caa64c4a86d1beca19e5e06e7810dd1a | ---
title: Merge two or more JavaScript objects
shortTitle: Merge objects
language: javascript
tags: [object,array]
cover: guitar-living-room
excerpt: Learn how to combine two or more objects into a single object in JavaScript.
listed: true
dateModified: 2024-03-20
---
JavaScript arrays are fairly easy to merge, using... | unknown | unknown | ---
title: Merge two or more JavaScript objects
shortTitle: Merge objects
language: javascript
tags: [object,array]
cover: guitar-living-room
excerpt: Learn how to combine two or more objects into a single object in JavaScript.
listed: true
dateModified: 2024-03-20
---
JavaScript arrays are fairly easy to merge, using... | ---
title: Merge two or more JavaScript objects
shortTitle: Merge objects
language: javascript
tags: [object,array]
cover: guitar-living-room
excerpt: Learn how to combine two or more objects into a single object in JavaScript.
listed: true
dateModified: 2024-03-20
---
JavaScript arrays are fairly easy to merge, using... | code_snippets | ||
e51d2902-f75f-4032-9f30-09c723e73c3e | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/merge-objects.md | unknown | d7f74017-06c0-4418-bb91-d1a74f6e90c5 | 3 | SemanticChunker@1.0.0 | fa94d930da7f63b67b8189cb0dec6a056f7a4ef3187d5341d288067d6a1e97b2 | [Built-in methods > Deeply merging objects]
## Deeply merging objects
If you need to merge objects that contain **nested objects**, you might want to handle nested values differently. This can be done by passing a function that handles the merging of individual keys, allowing you to **customize the merging process**.... | unknown | unknown | [Built-in methods > Deeply merging objects]
## Deeply merging objects
If you need to merge objects that contain **nested objects**, you might want to handle nested values differently. This can be done by passing a function that handles the merging of individual keys, allowing you to **customize the merging process**.... | [Built-in methods > Deeply merging objects]
## Deeply merging objects
If you need to merge objects that contain **nested objects**, you might want to handle nested values differently. This can be done by passing a function that handles the merging of individual keys, allowing you to **customize the merging process**.... | code_snippets | ||
266efd91-4e9a-4851-b36c-c5ce8d12f1d1 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/memoization.md | unknown | cdae0709-823c-47b9-a12f-7373a0df4753 | 0 | SemanticChunker@1.0.0 | fa4e3934b2140d625021c71e7ae9a6e5303cb85cca26da25a7a38c9645bf802c | ---
title: Where and how can I use memoization in JavaScript?
shortTitle: Memoization introduction
language: javascript
tags: [function,memoization]
cover: cherry-trees
excerpt: Learn different ways to memoize function calls in JavaScript as well as when to use memoization to get the best performance results.
listed: t... | unknown | unknown | ---
title: Where and how can I use memoization in JavaScript?
shortTitle: Memoization introduction
language: javascript
tags: [function,memoization]
cover: cherry-trees
excerpt: Learn different ways to memoize function calls in JavaScript as well as when to use memoization to get the best performance results.
listed: t... | ---
title: Where and how can I use memoization in JavaScript?
shortTitle: Memoization introduction
language: javascript
tags: [function,memoization]
cover: cherry-trees
excerpt: Learn different ways to memoize function calls in JavaScript as well as when to use memoization to get the best performance results.
listed: t... | code_snippets | ||
370cb89a-66eb-48e4-936e-030147df0435 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/memoization.md | unknown | cdae0709-823c-47b9-a12f-7373a0df4753 | 4 | SemanticChunker@1.0.0 | c09b88bf0d44715ed217c8ed28cde463060e8c2f2f01c8986db02e355ae4a3a3 | [What is memoization? > Using a Proxy object for memoization]
## Using a Proxy object for memoization
While the previous example is a good way to implement memoization, JavaScript's [Proxy object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Proxy) provides an interesting **alterna... | unknown | unknown | [What is memoization? > Using a Proxy object for memoization]
## Using a Proxy object for memoization
While the previous example is a good way to implement memoization, JavaScript's [Proxy object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Proxy) provides an interesting **alterna... | [What is memoization? > Using a Proxy object for memoization]
## Using a Proxy object for memoization
While the previous example is a good way to implement memoization, JavaScript's [Proxy object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Proxy) provides an interesting **alterna... | code_snippets | ||
56229f79-74f1-40da-a34f-aac221225c66 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/memoization.md | unknown | cdae0709-823c-47b9-a12f-7373a0df4753 | 3 | SemanticChunker@1.0.0 | ef2078b660776c17439b9573bcfd96c55d4ff6b713f11d96e098d379e5d87158 | [What is memoization? > Memoize a function]
## Memoize a function
It's fairly easy to roll up your own memoization function in JavaScript. For this implementation, we'll use a `Map` to store the results. The `Map` object holds **key-value pairs** and remembers the original insertion order of the keys. This makes it s... | unknown | unknown | [What is memoization? > Memoize a function]
## Memoize a function
It's fairly easy to roll up your own memoization function in JavaScript. For this implementation, we'll use a `Map` to store the results. The `Map` object holds **key-value pairs** and remembers the original insertion order of the keys. This makes it s... | [What is memoization? > Memoize a function]
## Memoize a function
It's fairly easy to roll up your own memoization function in JavaScript. For this implementation, we'll use a `Map` to store the results. The `Map` object holds **key-value pairs** and remembers the original insertion order of the keys. This makes it s... | code_snippets | ||
879e3561-8904-427f-b58b-b43ce31d0709 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/memoization.md | unknown | cdae0709-823c-47b9-a12f-7373a0df4753 | 2 | SemanticChunker@1.0.0 | 0c51127b8cb27a6fbc1fc7d0da3f9163982e2041aab29c097e7e54832a175704 | [What is memoization? > Criteria for using memoization]
## Criteria for using memoization
Based on its definition, we can easily deduce some criteria to help us discover good candidates for memoization:
- **Slow-performing, costly or time-consuming** function calls can benefit from memoization
- Memoization speeds u... | unknown | unknown | [What is memoization? > Criteria for using memoization]
## Criteria for using memoization
Based on its definition, we can easily deduce some criteria to help us discover good candidates for memoization:
- **Slow-performing, costly or time-consuming** function calls can benefit from memoization
- Memoization speeds u... | [What is memoization? > Criteria for using memoization]
## Criteria for using memoization
Based on its definition, we can easily deduce some criteria to help us discover good candidates for memoization:
- **Slow-performing, costly or time-consuming** function calls can benefit from memoization
- Memoization speeds u... | code_snippets | ||
f5f85de1-c3f5-44ef-97d6-811d9df04896 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/memoization.md | unknown | cdae0709-823c-47b9-a12f-7373a0df4753 | 1 | SemanticChunker@1.0.0 | 12236442be9fae120100d3ff92303b26f16fa00c21ed585a79ceb57f19219274 | [What is memoization?]
## What is memoization?
Memoization is a commonly used technique that can help speed up your code significantly. It relies on a **cache** to store results for previously completed units of work. The purpose of the cache is to **avoid performing the same work more than once**, speeding up subseq... | unknown | unknown | [What is memoization?]
## What is memoization?
Memoization is a commonly used technique that can help speed up your code significantly. It relies on a **cache** to store results for previously completed units of work. The purpose of the cache is to **avoid performing the same work more than once**, speeding up subseq... | [What is memoization?]
## What is memoization?
Memoization is a commonly used technique that can help speed up your code significantly. It relies on a **cache** to store results for previously completed units of work. The purpose of the cache is to **avoid performing the same work more than once**, speeding up subseq... | code_snippets | ||
5715bd61-ddfc-433f-ac5d-44af6024ea2b | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/merge-arrays.md | unknown | 8f76052a-1682-4d05-afe3-8bc89e685215 | 3 | SemanticChunker@1.0.0 | 68cd8d973ff58c78b9c9d04378d0f89898cc83f5daabffa8afa826867dc746a7 | [Spread operator > Comparing the two]
## Comparing the two
The spread operator version is definitely shorter and as readable as the `Array.prototype.concat()` one. Apart from that, the spread operator seems to be slightly faster based on [some benchmarks I have performed](https://jsben.ch/9txyg) (as of **Aug, 2020 on... | unknown | unknown | [Spread operator > Comparing the two]
## Comparing the two
The spread operator version is definitely shorter and as readable as the `Array.prototype.concat()` one. Apart from that, the spread operator seems to be slightly faster based on [some benchmarks I have performed](https://jsben.ch/9txyg) (as of **Aug, 2020 on... | [Spread operator > Comparing the two]
## Comparing the two
The spread operator version is definitely shorter and as readable as the `Array.prototype.concat()` one. Apart from that, the spread operator seems to be slightly faster based on [some benchmarks I have performed](https://jsben.ch/9txyg) (as of **Aug, 2020 on... | code_snippets | ||
78879116-e650-4bc0-8eff-6a193dafd12b | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/merge-arrays.md | unknown | 8f76052a-1682-4d05-afe3-8bc89e685215 | 2 | SemanticChunker@1.0.0 | 5bef09aefd63a910ac9ccdec71f338ef7e83bc7f04622db69ba0796aa8e3c73c | [Spread operator > Array.prototype.concat()]
## Array.prototype.concat()
[`Array.prototype.concat()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/concat) is a method on the `Array` prototype and can be used to create a new array, either by concatenating both arrays to a new ... | unknown | unknown | [Spread operator > Array.prototype.concat()]
## Array.prototype.concat()
[`Array.prototype.concat()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/concat) is a method on the `Array` prototype and can be used to create a new array, either by concatenating both arrays to a new ... | [Spread operator > Array.prototype.concat()]
## Array.prototype.concat()
[`Array.prototype.concat()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/concat) is a method on the `Array` prototype and can be used to create a new array, either by concatenating both arrays to a new ... | code_snippets | ||
c6cf4d97-2289-41e6-b2ec-7440c215aabb | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/merge-arrays.md | unknown | 8f76052a-1682-4d05-afe3-8bc89e685215 | 0 | SemanticChunker@1.0.0 | 6e189bdee0047daf726f5fa203ffbb1bfa4784bcc9cb99e0603cb98b4c82b5f1 | ---
title: How do I merge two arrays in JavaScript?
shortTitle: Merge arrays
language: javascript
tags: [array]
cover: arrays
excerpt: Arrays are one of the most used data types in any programming language. Learn how to merge two arrays in JavaScript with this short guide.
listed: true
dateModified: 2021-06-12
--- | unknown | unknown | ---
title: How do I merge two arrays in JavaScript?
shortTitle: Merge arrays
language: javascript
tags: [array]
cover: arrays
excerpt: Arrays are one of the most used data types in any programming language. Learn how to merge two arrays in JavaScript with this short guide.
listed: true
dateModified: 2021-06-12
--- | ---
title: How do I merge two arrays in JavaScript?
shortTitle: Merge arrays
language: javascript
tags: [array]
cover: arrays
excerpt: Arrays are one of the most used data types in any programming language. Learn how to merge two arrays in JavaScript with this short guide.
listed: true
dateModified: 2021-06-12
--- | code_snippets | ||
faedd5a2-92f1-4d92-b931-1c6cce3d6d99 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/merge-arrays.md | unknown | 8f76052a-1682-4d05-afe3-8bc89e685215 | 1 | SemanticChunker@1.0.0 | ea5471cc43a4bfac104873d5e6696c36d080a84d6766f31ad8254fed17ab2794 | [Spread operator]
## Spread operator
The [spread operator (`...`)](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_syntax) was introduced in ES6 and can be used to merge two or more arrays, by spreading each one inside a new array:
```js
const a = [1, 2, 3];
const b = [4, 5, 6];
c... | unknown | unknown | [Spread operator]
## Spread operator
The [spread operator (`...`)](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_syntax) was introduced in ES6 and can be used to merge two or more arrays, by spreading each one inside a new array:
```js
const a = [1, 2, 3];
const b = [4, 5, 6];
c... | [Spread operator]
## Spread operator
The [spread operator (`...`)](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_syntax) was introduced in ES6 and can be used to merge two or more arrays, by spreading each one inside a new array:
```js
const a = [1, 2, 3];
const b = [4, 5, 6];
c... | code_snippets | ||
849f361d-5712-421a-92a8-99b850b5ced4 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/max-subarray.md | unknown | dd50d5f8-da16-4640-97de-34dc441d6caa | 0 | SemanticChunker@1.0.0 | 028e429cf08daaffe1e03b2fdb4aea33d7adbad6f4666125b446798ce5eedd5b | ---
title: Find the maximum subarray of a JavaScript array
shortTitle: Maximum subarray
language: javascript
tags: [algorithm,math,array]
cover: work-hard-computer
excerpt: Learn how to find the contiguous subarray with the largest sum within an array of numbers in JavaScript.
listed: true
dateModified: 2024-08-03
---
... | unknown | unknown | ---
title: Find the maximum subarray of a JavaScript array
shortTitle: Maximum subarray
language: javascript
tags: [algorithm,math,array]
cover: work-hard-computer
excerpt: Learn how to find the contiguous subarray with the largest sum within an array of numbers in JavaScript.
listed: true
dateModified: 2024-08-03
---
... | ---
title: Find the maximum subarray of a JavaScript array
shortTitle: Maximum subarray
language: javascript
tags: [algorithm,math,array]
cover: work-hard-computer
excerpt: Learn how to find the contiguous subarray with the largest sum within an array of numbers in JavaScript.
listed: true
dateModified: 2024-08-03
---
... | code_snippets | ||
07069a5d-3db0-4834-ba6c-f6f46ea3addd | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modify-url-without-reload.md | unknown | a3d6294e-e0b6-46e0-9d3b-a9703acb8bef | 2 | SemanticChunker@1.0.0 | 5728c6bab1515b4ed2f77a96391d027e732724cef13642b1ffbf61e9d5263199 | [Using the History API > Update the URL]
### Update the URL
Using the History API, you can create a **function that updates the URL of the current page without reloading it**. This function can be used to **simulate a navigation event**, without actually navigating to a different page. Depending on your needs, you ca... | unknown | unknown | [Using the History API > Update the URL]
### Update the URL
Using the History API, you can create a **function that updates the URL of the current page without reloading it**. This function can be used to **simulate a navigation event**, without actually navigating to a different page. Depending on your needs, you ca... | [Using the History API > Update the URL]
### Update the URL
Using the History API, you can create a **function that updates the URL of the current page without reloading it**. This function can be used to **simulate a navigation event**, without actually navigating to a different page. Depending on your needs, you ca... | code_snippets | ||
18f2ac4a-4ce9-4b4d-93a4-e4dc0191240b | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modify-url-without-reload.md | unknown | a3d6294e-e0b6-46e0-9d3b-a9703acb8bef | 0 | SemanticChunker@1.0.0 | 82bd8dc42dbcdd0bbae5bbae6553edc23fc2a2e370c768d3fd1a6b9a97ab8be1 | ---
title: How do I use JavaScript to modify the URL without reloading the page?
shortTitle: Modify URL without reloading
language: javascript
tags: [browser]
cover: compass
excerpt: Learn all of the options JavaScript provides for modifying the URL of the current page in the browser without reloading the page.
listed:... | unknown | unknown | ---
title: How do I use JavaScript to modify the URL without reloading the page?
shortTitle: Modify URL without reloading
language: javascript
tags: [browser]
cover: compass
excerpt: Learn all of the options JavaScript provides for modifying the URL of the current page in the browser without reloading the page.
listed:... | ---
title: How do I use JavaScript to modify the URL without reloading the page?
shortTitle: Modify URL without reloading
language: javascript
tags: [browser]
cover: compass
excerpt: Learn all of the options JavaScript provides for modifying the URL of the current page in the browser without reloading the page.
listed:... | code_snippets | ||
caf8f6f6-be1e-4aed-81c9-bccd88d29001 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modify-url-without-reload.md | unknown | a3d6294e-e0b6-46e0-9d3b-a9703acb8bef | 4 | SemanticChunker@1.0.0 | 0d847399312599f14bec5a02da9ebf99c5b080d12298cd3ff48403196a29e2e2 | [Using the Location API > Redirect to a URL]
### Redirect to a URL
Using the Location API, it's pretty easy to create a **function that redirects to the specified URL**, using `Window.location.href` or `Window.location.replace()`. Additionally, we can leverage the function's arguments to simulate a link click (`true`... | unknown | unknown | [Using the Location API > Redirect to a URL]
### Redirect to a URL
Using the Location API, it's pretty easy to create a **function that redirects to the specified URL**, using `Window.location.href` or `Window.location.replace()`. Additionally, we can leverage the function's arguments to simulate a link click (`true`... | [Using the Location API > Redirect to a URL]
### Redirect to a URL
Using the Location API, it's pretty easy to create a **function that redirects to the specified URL**, using `Window.location.href` or `Window.location.replace()`. Additionally, we can leverage the function's arguments to simulate a link click (`true`... | code_snippets | ||
d2058879-a952-4ee3-993e-54d5921cf416 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modify-url-without-reload.md | unknown | a3d6294e-e0b6-46e0-9d3b-a9703acb8bef | 1 | SemanticChunker@1.0.0 | 9a212e0c38749b68a21448c13fdd7eb1dd07e835205c4cc32a4a9f69cc04408b | [Using the History API]
## Using the History API
The HTML5 [History API](https://developer.mozilla.org/en-US/docs/Web/API/History_API) is definitely the way to go for modern websites. It accomplishes the task at hand, while also providing additional functionality. You can use either `history.pushState()` or `history.... | unknown | unknown | [Using the History API]
## Using the History API
The HTML5 [History API](https://developer.mozilla.org/en-US/docs/Web/API/History_API) is definitely the way to go for modern websites. It accomplishes the task at hand, while also providing additional functionality. You can use either `history.pushState()` or `history.... | [Using the History API]
## Using the History API
The HTML5 [History API](https://developer.mozilla.org/en-US/docs/Web/API/History_API) is definitely the way to go for modern websites. It accomplishes the task at hand, while also providing additional functionality. You can use either `history.pushState()` or `history.... | code_snippets | ||
eb1b376b-e4ee-4ffd-afc1-4d14d5131000 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modify-url-without-reload.md | unknown | a3d6294e-e0b6-46e0-9d3b-a9703acb8bef | 3 | SemanticChunker@1.0.0 | 0b5a6d7324b7bb1b51773299a714fa45b19e300bbb6e9bca131b8c4b22a7ee0a | [Using the History API > Using the Location API]
## Using the Location API
The older [Location API](https://developer.mozilla.org/en-US/docs/Web/API/Location) is not the best tool for the job. It **reloads the page**, but still allows you to modify the current URL and might be useful when working with **legacy browse... | unknown | unknown | [Using the History API > Using the Location API]
## Using the Location API
The older [Location API](https://developer.mozilla.org/en-US/docs/Web/API/Location) is not the best tool for the job. It **reloads the page**, but still allows you to modify the current URL and might be useful when working with **legacy browse... | [Using the History API > Using the Location API]
## Using the Location API
The older [Location API](https://developer.mozilla.org/en-US/docs/Web/API/Location) is not the best tool for the job. It **reloads the page**, but still allows you to modify the current URL and might be useful when working with **legacy browse... | code_snippets | ||
047c940a-ba59-47d2-bb30-f1f4fc3a0212 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 11 | SemanticChunker@1.0.0 | 95039c97a96981ddc7692fab7489ae50e88505d0f48c46eb448a91ce411ce344 | [Matrix operations > Transpose]
### Transpose
The **transpose** of a matrix is a new matrix whose rows are the columns of the original matrix. This is a very common operation in linear algebra and is often used in machine learning and data science.
@[Quick refresher](/js/s/transpose-matrix)
```js
class Matrix {
tr... | unknown | unknown | [Matrix operations > Transpose]
### Transpose
The **transpose** of a matrix is a new matrix whose rows are the columns of the original matrix. This is a very common operation in linear algebra and is often used in machine learning and data science.
@[Quick refresher](/js/s/transpose-matrix)
```js
class Matrix {
tr... | [Matrix operations > Transpose]
### Transpose
The **transpose** of a matrix is a new matrix whose rows are the columns of the original matrix. This is a very common operation in linear algebra and is often used in machine learning and data science.
@[Quick refresher](/js/s/transpose-matrix)
```js
class Matrix {
tr... | code_snippets | ||
119ad5fe-4424-49f6-89ac-bc7f158250ed | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 15 | SemanticChunker@1.0.0 | d75155ebcf4a14bdb186688eefcb378ac80f5734882006cc401454fe63278d1a | [Data structure > Predicate matching]
lastIndexOf(value) {
for (let i = this.rows - 1; i >= 0; i--)
for (let j = this.cols - 1; j >= 0; j--)
if (this.data[i][j] === value) return [i, j];
return undefined;
}
}
```
## Other array operations
Native JavaScript arrays have, after ES6, a whole host of useful method... | unknown | unknown | [Data structure > Predicate matching]
lastIndexOf(value) {
for (let i = this.rows - 1; i >= 0; i--)
for (let j = this.cols - 1; j >= 0; j--)
if (this.data[i][j] === value) return [i, j];
return undefined;
}
}
```
## Other array operations
Native JavaScript arrays have, after ES6, a whole host of useful method... | [Data structure > Predicate matching]
lastIndexOf(value) {
for (let i = this.rows - 1; i >= 0; i--)
for (let j = this.cols - 1; j >= 0; j--)
if (this.data[i][j] === value) return [i, j];
return undefined;
}
}
```
## Other array operations
Native JavaScript arrays have, after ES6, a whole host of useful method... | code_snippets | ||
23f49030-214e-4400-b3ab-57d398affcf6 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 6 | SemanticChunker@1.0.0 | 168905dbe0ba8c601a3d5d4fb263f7a3ce7c9c8b67e81f51b8dee00b32763ef5 | [Math operations > Basic math operations]
### Basic math operations
Basic mathematical operations form the foundation of other matrix operations and are very common in many use cases. We'll add the following methods:
- `add`: Adds two matrices together.
- `subtract`: Subtracts one matrix from another.
- `multiply`: ... | unknown | unknown | [Math operations > Basic math operations]
### Basic math operations
Basic mathematical operations form the foundation of other matrix operations and are very common in many use cases. We'll add the following methods:
- `add`: Adds two matrices together.
- `subtract`: Subtracts one matrix from another.
- `multiply`: ... | [Math operations > Basic math operations]
### Basic math operations
Basic mathematical operations form the foundation of other matrix operations and are very common in many use cases. We'll add the following methods:
- `add`: Adds two matrices together.
- `subtract`: Subtracts one matrix from another.
- `multiply`: ... | code_snippets | ||
41a6d145-fe10-4958-b26c-4c117788f257 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 2 | SemanticChunker@1.0.0 | 084a6fbd70a9e756f1bcf167daa780e5280a3f890b32a72b02a836b49a8f64e7 | [Data structure > Initialization]
## Initialization
Before we can **initialize the data** in the matrix, we'll need some methods to help us with that. I'm going to add the following for starters:
- `fill`: Fills the matrix with a specific value.
- `copy`: Creates a deep copy of the matrix.
Let's also add some **sta... | unknown | unknown | [Data structure > Initialization]
## Initialization
Before we can **initialize the data** in the matrix, we'll need some methods to help us with that. I'm going to add the following for starters:
- `fill`: Fills the matrix with a specific value.
- `copy`: Creates a deep copy of the matrix.
Let's also add some **sta... | [Data structure > Initialization]
## Initialization
Before we can **initialize the data** in the matrix, we'll need some methods to help us with that. I'm going to add the following for starters:
- `fill`: Fills the matrix with a specific value.
- `copy`: Creates a deep copy of the matrix.
Let's also add some **sta... | code_snippets | ||
62bc0b6f-2ec7-43ea-b6d1-fce9273cdf65 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 4 | SemanticChunker@1.0.0 | 70fe9256ac074b36b902a99d70a61ba10053a7748f585a807f75f844d1a06069 | [Data structure > Accessing values]
## Accessing values
Again, drawing inspiration from native data structures, I added some methods to **access the matrix data**, either as single values or as slices. The following methods are available:
- `get`: Returns the value at the given indexes (`i, j`).
- `set`: Sets the va... | unknown | unknown | [Data structure > Accessing values]
## Accessing values
Again, drawing inspiration from native data structures, I added some methods to **access the matrix data**, either as single values or as slices. The following methods are available:
- `get`: Returns the value at the given indexes (`i, j`).
- `set`: Sets the va... | [Data structure > Accessing values]
## Accessing values
Again, drawing inspiration from native data structures, I added some methods to **access the matrix data**, either as single values or as slices. The following methods are available:
- `get`: Returns the value at the given indexes (`i, j`).
- `set`: Sets the va... | code_snippets | ||
683d73a7-652d-4c55-9bb1-10746045e9d3 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 12 | SemanticChunker@1.0.0 | b3039ad4fd7619ae60d018bf348feccaa0584b89df846a2ad6f43c1d0e1de50c | [Matrix operations > Diagonal & trace]
### Diagonal & trace
The **diagonal** of a matrix is a 1D vector that contains the elements of the matrix that are on the diagonal. Similarly, the **trace** of a matrix is the sum of the elements on the diagonal. Both are pretty common in many areas of programming.
```js collap... | unknown | unknown | [Matrix operations > Diagonal & trace]
### Diagonal & trace
The **diagonal** of a matrix is a 1D vector that contains the elements of the matrix that are on the diagonal. Similarly, the **trace** of a matrix is the sum of the elements on the diagonal. Both are pretty common in many areas of programming.
```js collap... | [Matrix operations > Diagonal & trace]
### Diagonal & trace
The **diagonal** of a matrix is a 1D vector that contains the elements of the matrix that are on the diagonal. Similarly, the **trace** of a matrix is the sum of the elements on the diagonal. Both are pretty common in many areas of programming.
```js collap... | code_snippets | ||
782f303e-765c-480b-9e79-953cb90420ee | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 14 | SemanticChunker@1.0.0 | 5e378c1fb233c13e9dd89fc1d20e15fb4bc5f1e83558b320f978a83c86c6429e | [Data structure > Predicate matching]
## Predicate matching
Native JavaScript arrays have a lot of methods for **matching values**, such as `find`, `some`, `every`, and so on. The same behavior is easy enough to implement for our matrix class, so let's add the following methods:
- `every` / `some`: Check if all or s... | unknown | unknown | [Data structure > Predicate matching]
## Predicate matching
Native JavaScript arrays have a lot of methods for **matching values**, such as `find`, `some`, `every`, and so on. The same behavior is easy enough to implement for our matrix class, so let's add the following methods:
- `every` / `some`: Check if all or s... | [Data structure > Predicate matching]
## Predicate matching
Native JavaScript arrays have a lot of methods for **matching values**, such as `find`, `some`, `every`, and so on. The same behavior is easy enough to implement for our matrix class, so let's add the following methods:
- `every` / `some`: Check if all or s... | code_snippets | ||
7a89f2c4-de92-48d7-b7c1-ee40358f9a53 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 13 | SemanticChunker@1.0.0 | fd06e246e15c98b7c8fefd213e794562e0c6a41eed071c48ac41177fc06039c3 | [Matrix operations > Diagonal & trace]
```
### Determinant & submatrices
The **determinant** of a matrix is a scalar value that can be calculated from the elements of a square matrix. It is a very important concept in linear algebra, but it takes a little bit of work to implement.
In order to calculate it, we need ... | unknown | unknown | [Matrix operations > Diagonal & trace]
```
### Determinant & submatrices
The **determinant** of a matrix is a scalar value that can be calculated from the elements of a square matrix. It is a very important concept in linear algebra, but it takes a little bit of work to implement.
In order to calculate it, we need ... | [Matrix operations > Diagonal & trace]
```
### Determinant & submatrices
The **determinant** of a matrix is a scalar value that can be calculated from the elements of a square matrix. It is a very important concept in linear algebra, but it takes a little bit of work to implement.
In order to calculate it, we need ... | code_snippets | ||
847ad35b-fab7-47ff-aaa5-7aff120313f7 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 16 | SemanticChunker@1.0.0 | 6dc1cbd5d8e7f9fbd1b494bb2ae22734108a4bd115882be46a5669a804c1544b | [Predicate matching > Flattening]
### Flattening
**Flattening** a matrix is pretty simple as, in essence, it's just a 2D array. Naturally, `flat` and `flatMap` are pretty easy to implement.
```js
class Matrix {
flat() {
return this.data.flat(2);
}
flatMap(callback) {
return this.map(callback).flat();
}
}
``` | unknown | unknown | [Predicate matching > Flattening]
### Flattening
**Flattening** a matrix is pretty simple as, in essence, it's just a 2D array. Naturally, `flat` and `flatMap` are pretty easy to implement.
```js
class Matrix {
flat() {
return this.data.flat(2);
}
flatMap(callback) {
return this.map(callback).flat();
}
}
``` | [Predicate matching > Flattening]
### Flattening
**Flattening** a matrix is pretty simple as, in essence, it's just a 2D array. Naturally, `flat` and `flatMap` are pretty easy to implement.
```js
class Matrix {
flat() {
return this.data.flat(2);
}
flatMap(callback) {
return this.map(callback).flat();
}
}
``` | code_snippets | ||
852348f3-a6ca-4b63-85f3-ed93ecb9becf | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 9 | SemanticChunker@1.0.0 | e84b8385548b548409c2ba5d9a3330b55794951f66cd666b24ad06a6932c7214 | [Math operations > Basic math operations]
```
# [continued: part 2]
stdPerCol() {
return this.variancePerCol().map(variance => Math.sqrt(variance));
}
cumulativeSum() {
const result = Array.from({ length: this.rows }, () => []);
let lastValue = 0;
for (let [i, j, value] of this.entries()) {
lastValue += val... | unknown | unknown | [Math operations > Basic math operations]
```
# [continued: part 2]
stdPerCol() {
return this.variancePerCol().map(variance => Math.sqrt(variance));
}
cumulativeSum() {
const result = Array.from({ length: this.rows }, () => []);
let lastValue = 0;
for (let [i, j, value] of this.entries()) {
lastValue += val... | [Math operations > Basic math operations]
```
# [continued: part 2]
stdPerCol() {
return this.variancePerCol().map(variance => Math.sqrt(variance));
}
cumulativeSum() {
const result = Array.from({ length: this.rows }, () => []);
let lastValue = 0;
for (let [i, j, value] of this.entries()) {
lastValue += val... | code_snippets | ||
857443e0-6b28-4389-bd31-a191857c7181 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 3 | SemanticChunker@1.0.0 | 5df45b368a3046afd0dff30d2877025d5e620006d6a908bc2bc6242267afe8ce | [Data structure > Iteration]
## Iteration
Iterating over the matrix should be as painless as possible. Taking inspiration from the `Map` native data structure, I opted to add the following methods that return **iterators**:
- `indexes`: Returns an iterator that yields the indexes of the matrix.
- `values`: Returns a... | unknown | unknown | [Data structure > Iteration]
## Iteration
Iterating over the matrix should be as painless as possible. Taking inspiration from the `Map` native data structure, I opted to add the following methods that return **iterators**:
- `indexes`: Returns an iterator that yields the indexes of the matrix.
- `values`: Returns a... | [Data structure > Iteration]
## Iteration
Iterating over the matrix should be as painless as possible. Taking inspiration from the `Map` native data structure, I opted to add the following methods that return **iterators**:
- `indexes`: Returns an iterator that yields the indexes of the matrix.
- `values`: Returns a... | code_snippets | ||
8f4dcafc-ca22-4964-bfad-4fc42d25b172 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 5 | SemanticChunker@1.0.0 | 9b34d2f71bbd4d2363ddebbe32f654e135c925bd53bf6ff9a48c6399f781b2f4 | [Data structure > Math operations]
## Math operations
Matrixes are often used for **mathematical operations**, so, naturally, I added a whole lot of them. I will not go into details about each one of them, but an overview will be provided. | unknown | unknown | [Data structure > Math operations]
## Math operations
Matrixes are often used for **mathematical operations**, so, naturally, I added a whole lot of them. I will not go into details about each one of them, but an overview will be provided. | [Data structure > Math operations]
## Math operations
Matrixes are often used for **mathematical operations**, so, naturally, I added a whole lot of them. I will not go into details about each one of them, but an overview will be provided. | code_snippets | ||
9c155b1a-bfc2-4e10-ad73-df6023ebb6cf | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 21 | SemanticChunker@1.0.0 | d028fb6286bcab946a232f731e769fd28b4644ebd7da8a2568978b4a253c167c | [Data structure > Conclusion]
## Conclusion
And that's it! A ton of work and code went into this one, but I think it was worth it. I hope you find this class useful in your projects. You can find the **full source code and tests** in the [dedicated GitHub repository](https://github.com/Chalarangelo/matrix-playground/... | unknown | unknown | [Data structure > Conclusion]
## Conclusion
And that's it! A ton of work and code went into this one, but I think it was worth it. I hope you find this class useful in your projects. You can find the **full source code and tests** in the [dedicated GitHub repository](https://github.com/Chalarangelo/matrix-playground/... | [Data structure > Conclusion]
## Conclusion
And that's it! A ton of work and code went into this one, but I think it was worth it. I hope you find this class useful in your projects. You can find the **full source code and tests** in the [dedicated GitHub repository](https://github.com/Chalarangelo/matrix-playground/... | code_snippets | ||
9ef2fee1-a6ee-4a57-a61e-5efd2d40ea88 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 10 | SemanticChunker@1.0.0 | 25d27e8c29600ae73e78ef3b3e021326608e3dfcfdb67a70d5ab75347c5314e2 | [Data structure > Matrix operations]
## Matrix operations
Matrix operations are a bit more complex and, quite frankly, I only understand the very basics of them. So, that's what I've implemented so far. | unknown | unknown | [Data structure > Matrix operations]
## Matrix operations
Matrix operations are a bit more complex and, quite frankly, I only understand the very basics of them. So, that's what I've implemented so far. | [Data structure > Matrix operations]
## Matrix operations
Matrix operations are a bit more complex and, quite frankly, I only understand the very basics of them. So, that's what I've implemented so far. | code_snippets | ||
b1cffdfc-2aa4-4134-8f4a-8ef340610425 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 8 | SemanticChunker@1.0.0 | e96eeda1bcae171b32202cfbaae32049e33a2eceeb6ffc296389e8ee6201a173 | [Math operations > Basic math operations]
```
# [continued: part 1]
sum() {
return this.reduce((acc, value) => acc + value, 0);
}
sumPerRow() {
return this.data.map(row => row.reduce((acc, value) => acc + value, 0));
}
sumPerCol() {
const result = Array.from({ length: this.cols }, () => 0);
for (let [, j, ... | unknown | unknown | [Math operations > Basic math operations]
```
# [continued: part 1]
sum() {
return this.reduce((acc, value) => acc + value, 0);
}
sumPerRow() {
return this.data.map(row => row.reduce((acc, value) => acc + value, 0));
}
sumPerCol() {
const result = Array.from({ length: this.cols }, () => 0);
for (let [, j, ... | [Math operations > Basic math operations]
```
# [continued: part 1]
sum() {
return this.reduce((acc, value) => acc + value, 0);
}
sumPerRow() {
return this.data.map(row => row.reduce((acc, value) => acc + value, 0));
}
sumPerCol() {
const result = Array.from({ length: this.cols }, () => 0);
for (let [, j, ... | code_snippets | ||
c89f6371-6129-4771-9eed-3cc64c3a0177 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 7 | SemanticChunker@1.0.0 | 88380f440bf009902a9e4b01fdb565894134c0d07e81bb16d09ef7fb82cb9a27 | [Math operations > Basic math operations]
```
### Additional math operations
Mathematical operations form the bulk of a lot of the functionality I've needed in the past, but basic math doesn't cover everything. Some very **common operations** for working with numbers need to be added, too:
- `max` / `maxIndex`/ `ma... | unknown | unknown | [Math operations > Basic math operations]
```
### Additional math operations
Mathematical operations form the bulk of a lot of the functionality I've needed in the past, but basic math doesn't cover everything. Some very **common operations** for working with numbers need to be added, too:
- `max` / `maxIndex`/ `ma... | [Math operations > Basic math operations]
```
### Additional math operations
Mathematical operations form the bulk of a lot of the functionality I've needed in the past, but basic math doesn't cover everything. Some very **common operations** for working with numbers need to be added, too:
- `max` / `maxIndex`/ `ma... | code_snippets | ||
d399bb83-1b97-4549-94c6-7897f16fe2c5 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 18 | SemanticChunker@1.0.0 | cbfb0f3825dc67b6838e8161408b0fbae8876f3a21740badb1764d7ae3417d79 | [Predicate matching > Filtering]
findMatches(callback) {
return this.reduce((acc, value, [i, j]) => {
if (callback(value, [i, j], this)) acc.push(value);
return acc;
}, []);
}
findIndexOfMatches(callback) {
return this.reduce((acc, value, [i, j]) => {
if (callback(value, [i, j], this)) acc.push([i, j]);
retu... | unknown | unknown | [Predicate matching > Filtering]
findMatches(callback) {
return this.reduce((acc, value, [i, j]) => {
if (callback(value, [i, j], this)) acc.push(value);
return acc;
}, []);
}
findIndexOfMatches(callback) {
return this.reduce((acc, value, [i, j]) => {
if (callback(value, [i, j], this)) acc.push([i, j]);
retu... | [Predicate matching > Filtering]
findMatches(callback) {
return this.reduce((acc, value, [i, j]) => {
if (callback(value, [i, j], this)) acc.push(value);
return acc;
}, []);
}
findIndexOfMatches(callback) {
return this.reduce((acc, value, [i, j]) => {
if (callback(value, [i, j], this)) acc.push([i, j]);
retu... | code_snippets | ||
d4a0b93a-ec3b-4bfa-9e38-94a4074c3783 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 17 | SemanticChunker@1.0.0 | dd23d1e18107e1c3f18c40f538753809089c517dabd03195251620cabd8cfb31 | [Predicate matching > Filtering]
### Filtering
**Filtering** a matrix can be done a few different ways. From regular filtering, similar to arrays, to using a **mask matrix/2D array**, there are a few methods we can add:
- `mask`: Filter the matrix using a mask matrix. Filtered values are replaces with `0`.
- `filter... | unknown | unknown | [Predicate matching > Filtering]
### Filtering
**Filtering** a matrix can be done a few different ways. From regular filtering, similar to arrays, to using a **mask matrix/2D array**, there are a few methods we can add:
- `mask`: Filter the matrix using a mask matrix. Filtered values are replaces with `0`.
- `filter... | [Predicate matching > Filtering]
### Filtering
**Filtering** a matrix can be done a few different ways. From regular filtering, similar to arrays, to using a **mask matrix/2D array**, there are a few methods we can add:
- `mask`: Filter the matrix using a mask matrix. Filtered values are replaces with `0`.
- `filter... | code_snippets | ||
d87dbb3a-5606-4028-ba09-4d316f9b46ce | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 20 | SemanticChunker@1.0.0 | 2adb177a79039428004be8f11400434032a580a5f26e64a73473bffe71c013e2 | [Predicate matching > Expanding]
### Expanding
Finally, we may want to **expand** a matrix to a larger size, either horizontally or vertically. This is essentially merging the matrix with a new one, filled with `0`s.
```js collapse={10-14}
class Matrix {
expandRows(rows, fillValue = 0) {
const newRows = new Matrix... | unknown | unknown | [Predicate matching > Expanding]
### Expanding
Finally, we may want to **expand** a matrix to a larger size, either horizontally or vertically. This is essentially merging the matrix with a new one, filled with `0`s.
```js collapse={10-14}
class Matrix {
expandRows(rows, fillValue = 0) {
const newRows = new Matrix... | [Predicate matching > Expanding]
### Expanding
Finally, we may want to **expand** a matrix to a larger size, either horizontally or vertically. This is essentially merging the matrix with a new one, filled with `0`s.
```js collapse={10-14}
class Matrix {
expandRows(rows, fillValue = 0) {
const newRows = new Matrix... | code_snippets | ||
e1ee1a6e-5f69-404f-bea1-e6145845ea4f | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 19 | SemanticChunker@1.0.0 | 5fa9fc4b443f7dec884fca0da8b47f513a5a70fd4a703f2b989ba422c21e3601 | [Predicate matching > Rotation]
### Rotation
**Rotating** the matrix clockwise and counterclockwise is a little more involved, but still pretty straightforward. We don't need any more rotations than just these two, as we can always rotate more than once to get the desired result.
```js collapse={13-19}
class Matrix ... | unknown | unknown | [Predicate matching > Rotation]
### Rotation
**Rotating** the matrix clockwise and counterclockwise is a little more involved, but still pretty straightforward. We don't need any more rotations than just these two, as we can always rotate more than once to get the desired result.
```js collapse={13-19}
class Matrix ... | [Predicate matching > Rotation]
### Rotation
**Rotating** the matrix clockwise and counterclockwise is a little more involved, but still pretty straightforward. We don't need any more rotations than just these two, as we can always rotate more than once to get the desired result.
```js collapse={13-19}
class Matrix ... | code_snippets | ||
e9abc73e-13c9-4b01-8643-ee8f8ee8bd29 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 0 | SemanticChunker@1.0.0 | 12303bface8606e4e65b5923aa8479451ce192a1e81b358a109f5d65c237964a | ---
title: Creating a Matrix data structure in JavaScript
shortTitle: Matrix data structure
language: javascript
tags: [class,array]
cover: coffee-branch
excerpt: After working with 2D arrays for a while, I decided to create a convenient wrapper for operations. Here's the gist of it.
listed: true
dateModified: 2025-06-... | unknown | unknown | ---
title: Creating a Matrix data structure in JavaScript
shortTitle: Matrix data structure
language: javascript
tags: [class,array]
cover: coffee-branch
excerpt: After working with 2D arrays for a while, I decided to create a convenient wrapper for operations. Here's the gist of it.
listed: true
dateModified: 2025-06-... | ---
title: Creating a Matrix data structure in JavaScript
shortTitle: Matrix data structure
language: javascript
tags: [class,array]
cover: coffee-branch
excerpt: After working with 2D arrays for a while, I decided to create a convenient wrapper for operations. Here's the gist of it.
listed: true
dateModified: 2025-06-... | code_snippets | ||
f01d0601-e5d7-4c4f-87ea-2a7938974c68 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/matrix-data-structure.md | unknown | 1c017ade-19cd-43ed-ab68-770587802e7f | 1 | SemanticChunker@1.0.0 | 4d7579a10560fbebd58c251ddd317553f1dca643a233867669e09e8da67ddf55 | [Data structure]
## Data structure
After fooling around with 1D and 2D arrays, it turns out that the naive approach of a **2D array** is the most efficient, given how it affects the performance of operations. On top of the `data` 2D array, we'll also keep track of the number of **rows** (`rows`) and **columns** (`col... | unknown | unknown | [Data structure]
## Data structure
After fooling around with 1D and 2D arrays, it turns out that the naive approach of a **2D array** is the most efficient, given how it affects the performance of operations. On top of the `data` 2D array, we'll also keep track of the number of **rows** (`rows`) and **columns** (`col... | [Data structure]
## Data structure
After fooling around with 1D and 2D arrays, it turns out that the naive approach of a **2D array** is the most efficient, given how it affects the performance of operations. On top of the `data` 2D array, we'll also keep track of the number of **rows** (`rows`) and **columns** (`col... | code_snippets | ||
145e413c-6539-4329-bacb-4114fdedd337 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modeling-money-currency-exchange-rates.md | unknown | 7426b210-befe-4578-863b-66dee32b362d | 12 | SemanticChunker@1.0.0 | 3e4c65efd70fea6e0ee955b311188745fa3e1c4cf890c4656bd80443824217e5 | [Modeling currency > Summary]
## Summary
Implementing a **basic structure** for money, currencies and exchange rates is a lot of work, but it's fairly straightforward once you get the basics down. There's plenty of improvements that you can make to this implementation, such as adding more mathematical operations, or ... | unknown | unknown | [Modeling currency > Summary]
## Summary
Implementing a **basic structure** for money, currencies and exchange rates is a lot of work, but it's fairly straightforward once you get the basics down. There's plenty of improvements that you can make to this implementation, such as adding more mathematical operations, or ... | [Modeling currency > Summary]
## Summary
Implementing a **basic structure** for money, currencies and exchange rates is a lot of work, but it's fairly straightforward once you get the basics down. There's plenty of improvements that you can make to this implementation, such as adding more mathematical operations, or ... | code_snippets | ||
1d8f5998-40c5-4239-af8e-61e2b0bd8bc4 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modeling-money-currency-exchange-rates.md | unknown | 7426b210-befe-4578-863b-66dee32b362d | 13 | SemanticChunker@1.0.0 | 4847b149610f31b98d43107d4ee048aef0a9f90274a60bebd07892cd1b3b59f1 | [Modeling currency > Summary]
```
```js title="Bank.js"
class Bank {
static defaultBank;
exchangeRates;
constructor() {
this.exchangeRates = new Map();
}
setRate(from, to, rate) {
const fromCurrency = Currency.wrap(from);
const toCurrency = Currency.wrap(to);
const exchangeRate = Number.parseFloat(rate);
... | unknown | unknown | [Modeling currency > Summary]
```
```js title="Bank.js"
class Bank {
static defaultBank;
exchangeRates;
constructor() {
this.exchangeRates = new Map();
}
setRate(from, to, rate) {
const fromCurrency = Currency.wrap(from);
const toCurrency = Currency.wrap(to);
const exchangeRate = Number.parseFloat(rate);
... | [Modeling currency > Summary]
```
```js title="Bank.js"
class Bank {
static defaultBank;
exchangeRates;
constructor() {
this.exchangeRates = new Map();
}
setRate(from, to, rate) {
const fromCurrency = Currency.wrap(from);
const toCurrency = Currency.wrap(to);
const exchangeRate = Number.parseFloat(rate);
... | code_snippets | ||
24a29dbf-3cfd-46dd-9c98-34f1934f55a8 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modeling-money-currency-exchange-rates.md | unknown | 7426b210-befe-4578-863b-66dee32b362d | 1 | SemanticChunker@1.0.0 | 8f54f35c28305c9f14ee5cd72c65701fb2bb5abf3e0287518eefcaa5d0474370 | [Modeling currency]
## Modeling currency
The first step in modeling any sort of monetary value is to have a **structure for currency**. Luckily, `Intl` has this problem solved for us. You can use `Intl.NumberFormat` with `style: 'currency'` to get a **formatter** for a specific currency. This formatter can then be us... | unknown | unknown | [Modeling currency]
## Modeling currency
The first step in modeling any sort of monetary value is to have a **structure for currency**. Luckily, `Intl` has this problem solved for us. You can use `Intl.NumberFormat` with `style: 'currency'` to get a **formatter** for a specific currency. This formatter can then be us... | [Modeling currency]
## Modeling currency
The first step in modeling any sort of monetary value is to have a **structure for currency**. Luckily, `Intl` has this problem solved for us. You can use `Intl.NumberFormat` with `style: 'currency'` to get a **formatter** for a specific currency. This formatter can then be us... | code_snippets | ||
2d5c6a3f-ac30-430d-b427-db8091fa6f8f | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modeling-money-currency-exchange-rates.md | unknown | 7426b210-befe-4578-863b-66dee32b362d | 4 | SemanticChunker@1.0.0 | f40a4cb7b358cc584868823beaf96122d3ce0ef0462a8fcd1f146bdb33910c88 | [Modeling currency > Modeling money]
## Modeling money
A **monetary value** is simply a data structure that contains **a value and a currency**. Implementing a class for that is fairly simple, using the `Currency` class from before. We can then use the currency object to format the value as needed.
```js
class Money... | unknown | unknown | [Modeling currency > Modeling money]
## Modeling money
A **monetary value** is simply a data structure that contains **a value and a currency**. Implementing a class for that is fairly simple, using the `Currency` class from before. We can then use the currency object to format the value as needed.
```js
class Money... | [Modeling currency > Modeling money]
## Modeling money
A **monetary value** is simply a data structure that contains **a value and a currency**. Implementing a class for that is fairly simple, using the `Currency` class from before. We can then use the currency object to format the value as needed.
```js
class Money... | code_snippets | ||
3e689672-fd10-4f29-9b55-bcd3cec06231 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modeling-money-currency-exchange-rates.md | unknown | 7426b210-befe-4578-863b-66dee32b362d | 5 | SemanticChunker@1.0.0 | 2c62184c6b635a6f4aee25ccfecf2580bb67816280d19343d6f89b63b252319f | [Modeling money > Mathematical operations with money]
### Mathematical operations with money
Performing mathematical operations with money is a bit more complex. We need to ensure that the **currency is the same** for both operands. We'll later cover how to handle exchange rates, but for now, we'll focus on the basic... | unknown | unknown | [Modeling money > Mathematical operations with money]
### Mathematical operations with money
Performing mathematical operations with money is a bit more complex. We need to ensure that the **currency is the same** for both operands. We'll later cover how to handle exchange rates, but for now, we'll focus on the basic... | [Modeling money > Mathematical operations with money]
### Mathematical operations with money
Performing mathematical operations with money is a bit more complex. We need to ensure that the **currency is the same** for both operands. We'll later cover how to handle exchange rates, but for now, we'll focus on the basic... | code_snippets | ||
407dbf1e-30cf-4f60-80f2-10d6243fef7e | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modeling-money-currency-exchange-rates.md | unknown | 7426b210-befe-4578-863b-66dee32b362d | 14 | SemanticChunker@1.0.0 | b1611dd7b75548a0c6ef0d09eb77a7bbf8b9b816d7abfc57ff2b31e66ff4d321 | [Modeling currency > Summary]
subtract(money) {
if (this.currency !== money.currency)
money = money.exchangeTo(this.currency);
return new Money(this.value - money.value, this.currency);
}
multiply(num) {
return new Money(this.value * num, this.currency);
}
divide(num) {
return new Money(this.value / num, th... | unknown | unknown | [Modeling currency > Summary]
subtract(money) {
if (this.currency !== money.currency)
money = money.exchangeTo(this.currency);
return new Money(this.value - money.value, this.currency);
}
multiply(num) {
return new Money(this.value * num, this.currency);
}
divide(num) {
return new Money(this.value / num, th... | [Modeling currency > Summary]
subtract(money) {
if (this.currency !== money.currency)
money = money.exchangeTo(this.currency);
return new Money(this.value - money.value, this.currency);
}
multiply(num) {
return new Money(this.value * num, this.currency);
}
divide(num) {
return new Money(this.value / num, th... | code_snippets | ||
457ca43d-38c9-4c13-aea5-f1912ad99805 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modeling-money-currency-exchange-rates.md | unknown | 7426b210-befe-4578-863b-66dee32b362d | 6 | SemanticChunker@1.0.0 | 4d571f4496b2e1d7fe112ced762f7a44eda8925107aaa21c7cc2e49914c9bde2 | [Modeling money > Mathematical operations with money]
```js
class Money {
// ...
add(money) {
if (this.currency !== money.currency)
throw new Error('Cannot add money with different currencies');
return new Money(this.value + money.value, this.currency);
}
subtract(money) {
if (this.currency !== money.currenc... | unknown | unknown | [Modeling money > Mathematical operations with money]
```js
class Money {
// ...
add(money) {
if (this.currency !== money.currency)
throw new Error('Cannot add money with different currencies');
return new Money(this.value + money.value, this.currency);
}
subtract(money) {
if (this.currency !== money.currenc... | [Modeling money > Mathematical operations with money]
```js
class Money {
// ...
add(money) {
if (this.currency !== money.currency)
throw new Error('Cannot add money with different currencies');
return new Money(this.value + money.value, this.currency);
}
subtract(money) {
if (this.currency !== money.currenc... | code_snippets | ||
4ff1ba11-5182-4da4-b3ce-d854ff382ad4 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modeling-money-currency-exchange-rates.md | unknown | 7426b210-befe-4578-863b-66dee32b362d | 7 | SemanticChunker@1.0.0 | 9a1999c0aca33a2fc1bddda5319f10bddf35ccd841da6781d691a396699f42a4 | [Modeling currency > Modeling exchange rates]
## Modeling exchange rates
An **exchange rate** is simply a **ratio between two currencies**. Instead of modeling it as a class, using a **wrapper object** that contains multiple exchange rates provides more utility. We'll be calling this object a `Bank`. | unknown | unknown | [Modeling currency > Modeling exchange rates]
## Modeling exchange rates
An **exchange rate** is simply a **ratio between two currencies**. Instead of modeling it as a class, using a **wrapper object** that contains multiple exchange rates provides more utility. We'll be calling this object a `Bank`. | [Modeling currency > Modeling exchange rates]
## Modeling exchange rates
An **exchange rate** is simply a **ratio between two currencies**. Instead of modeling it as a class, using a **wrapper object** that contains multiple exchange rates provides more utility. We'll be calling this object a `Bank`. | code_snippets | ||
63193c0a-2675-4221-a308-ba754f00d324 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modeling-money-currency-exchange-rates.md | unknown | 7426b210-befe-4578-863b-66dee32b362d | 2 | SemanticChunker@1.0.0 | 8494a9c1e113740a02fe44c82627485bf09f7be8635e799599c556555b9441d3 | [Modeling currency > Setting up currency information]
### Setting up currency information
In order to retrieve **all supported currencies**, we can use `Intl.supportedValuesOf()` with `'currency'` as the argument. This will return an array of the [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217) **currency codes** s... | unknown | unknown | [Modeling currency > Setting up currency information]
### Setting up currency information
In order to retrieve **all supported currencies**, we can use `Intl.supportedValuesOf()` with `'currency'` as the argument. This will return an array of the [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217) **currency codes** s... | [Modeling currency > Setting up currency information]
### Setting up currency information
In order to retrieve **all supported currencies**, we can use `Intl.supportedValuesOf()` with `'currency'` as the argument. This will return an array of the [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217) **currency codes** s... | code_snippets | ||
63fc167a-6f11-41d7-944b-b142d012fdd0 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modeling-money-currency-exchange-rates.md | unknown | 7426b210-befe-4578-863b-66dee32b362d | 11 | SemanticChunker@1.0.0 | 176a367c0f60b1423048bc7ef964a839948665c9e4804439294058a4077d2125 | [Modeling exchange rates > Mathematical operations with exchange rates]
### Mathematical operations with exchange rates
Having set up exchange rates, we can now perform mathematical operations with money in **different currencies**. We need only check if two `Money` objects are in the same currency before performing ... | unknown | unknown | [Modeling exchange rates > Mathematical operations with exchange rates]
### Mathematical operations with exchange rates
Having set up exchange rates, we can now perform mathematical operations with money in **different currencies**. We need only check if two `Money` objects are in the same currency before performing ... | [Modeling exchange rates > Mathematical operations with exchange rates]
### Mathematical operations with exchange rates
Having set up exchange rates, we can now perform mathematical operations with money in **different currencies**. We need only check if two `Money` objects are in the same currency before performing ... | code_snippets | ||
65dfe106-a02c-40b9-abec-6b2dfe065d27 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modeling-money-currency-exchange-rates.md | unknown | 7426b210-befe-4578-863b-66dee32b362d | 3 | SemanticChunker@1.0.0 | a1d5142b0b138a2edd3b7a73483c51cc3267d7fa565153123e5debf0329f6b7d | [Setting up currency information > Retrieving currency objects]
### Retrieving currency objects
Having set up all the currency information, we need a way to retrieve it when we need it. Getting the **same currency object for the same currency code** will be important later down the line for comparisons. As we have a ... | unknown | unknown | [Setting up currency information > Retrieving currency objects]
### Retrieving currency objects
Having set up all the currency information, we need a way to retrieve it when we need it. Getting the **same currency object for the same currency code** will be important later down the line for comparisons. As we have a ... | [Setting up currency information > Retrieving currency objects]
### Retrieving currency objects
Having set up all the currency information, we need a way to retrieve it when we need it. Getting the **same currency object for the same currency code** will be important later down the line for comparisons. As we have a ... | code_snippets | ||
96e6618f-91ba-4458-95cd-89155c8b990d | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modeling-money-currency-exchange-rates.md | unknown | 7426b210-befe-4578-863b-66dee32b362d | 10 | SemanticChunker@1.0.0 | dfe6175776d71c407f6628b35ed0fbf8c9dadabdbe72279fa735445b82725634 | [Modeling exchange rates > Making money exchangeable]
### Making money exchangeable
Using the `Bank` class to exchange money works, but it's a lot of work to do every time. The more practical scenario would be to **reference** a `Bank` instance from each `Money` object and use it to exchange money.
```js
class Money... | unknown | unknown | [Modeling exchange rates > Making money exchangeable]
### Making money exchangeable
Using the `Bank` class to exchange money works, but it's a lot of work to do every time. The more practical scenario would be to **reference** a `Bank` instance from each `Money` object and use it to exchange money.
```js
class Money... | [Modeling exchange rates > Making money exchangeable]
### Making money exchangeable
Using the `Bank` class to exchange money works, but it's a lot of work to do every time. The more practical scenario would be to **reference** a `Bank` instance from each `Money` object and use it to exchange money.
```js
class Money... | code_snippets | ||
99020ced-f250-433e-bb88-a26f9f5e6f9f | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modeling-money-currency-exchange-rates.md | unknown | 7426b210-befe-4578-863b-66dee32b362d | 0 | SemanticChunker@1.0.0 | 690b36073747e88ac258361ed71fc1e2a90954d0a403db5b7aa5489193698419 | ---
title: Modeling money, currencies & exchange rates using JavaScript
shortTitle: Money, currencies & exchange rates
language: javascript
tags: [math,class]
cover: money
excerpt: A deep dive into modeling money, currencies, and exchange rates using JavaScript.
listed: true
dateModified: 2024-04-24
---
Working with m... | unknown | unknown | ---
title: Modeling money, currencies & exchange rates using JavaScript
shortTitle: Money, currencies & exchange rates
language: javascript
tags: [math,class]
cover: money
excerpt: A deep dive into modeling money, currencies, and exchange rates using JavaScript.
listed: true
dateModified: 2024-04-24
---
Working with m... | ---
title: Modeling money, currencies & exchange rates using JavaScript
shortTitle: Money, currencies & exchange rates
language: javascript
tags: [math,class]
cover: money
excerpt: A deep dive into modeling money, currencies, and exchange rates using JavaScript.
listed: true
dateModified: 2024-04-24
---
Working with m... | code_snippets | ||
b6658110-a033-4083-a1a7-099c1446bfda | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modeling-money-currency-exchange-rates.md | unknown | 7426b210-befe-4578-863b-66dee32b362d | 9 | SemanticChunker@1.0.0 | 971af77830aa2be0eb1493f412f7ebf2ef6bdcb59a2218514328c4da84cdb605 | [Modeling exchange rates > Converting money]
### Converting money
Converting money from one currency to another is a matter of **multiplying the value by the exchange rate**. The responsibility for exchanging money is part of the `Bank` class, as it's the one that holds the exchange rates.
```js
class Bank {
// ...... | unknown | unknown | [Modeling exchange rates > Converting money]
### Converting money
Converting money from one currency to another is a matter of **multiplying the value by the exchange rate**. The responsibility for exchanging money is part of the `Bank` class, as it's the one that holds the exchange rates.
```js
class Bank {
// ...... | [Modeling exchange rates > Converting money]
### Converting money
Converting money from one currency to another is a matter of **multiplying the value by the exchange rate**. The responsibility for exchanging money is part of the `Bank` class, as it's the one that holds the exchange rates.
```js
class Bank {
// ...... | code_snippets | ||
e6786a3f-4cd4-49f1-8e3a-2252be6fc624 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/modeling-money-currency-exchange-rates.md | unknown | 7426b210-befe-4578-863b-66dee32b362d | 8 | SemanticChunker@1.0.0 | bd17d7343d486386365d9c5cdf620cb435b1dcfa01b46e16cd259a385b052986 | [Modeling exchange rates > Creating a bank]
### Creating a bank
The `Bank` class will contain a `Map` object that maps **currency pairs to exchange rates**. We can add exchange rates using `Map.prototype.set()` and retrieve them using `Map.prototype.get()`. In order to keep things neat and ensure we can pass **either... | unknown | unknown | [Modeling exchange rates > Creating a bank]
### Creating a bank
The `Bank` class will contain a `Map` object that maps **currency pairs to exchange rates**. We can add exchange rates using `Map.prototype.set()` and retrieve them using `Map.prototype.get()`. In order to keep things neat and ensure we can pass **either... | [Modeling exchange rates > Creating a bank]
### Creating a bank
The `Bank` class will contain a `Map` object that maps **currency pairs to exchange rates**. We can add exchange rates using `Map.prototype.set()` and retrieve them using `Map.prototype.get()`. In order to keep things neat and ensure we can pass **either... | code_snippets | ||
fc2786b4-661f-494d-a5db-1ea7674dfc85 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/node-list-to-array.md | unknown | abf5f4d5-a0e9-49ad-9b3e-705e2e1ec337 | 0 | SemanticChunker@1.0.0 | db771d4f699d96588b2814bcb2b2ae9b37d4d92962207aea851b7957e9191c4b | ---
title: Convert a NodeList to a JavaScript array
shortTitle: NodeList to array
language: javascript
tags: [browser,array]
cover: compass-2
excerpt: Ever needed to convert a `NodeList` to an array in JavaScript? Here's the fastest way to do so.
listed: true
dateModified: 2024-03-21
---
If you've ever worked with `No... | unknown | unknown | ---
title: Convert a NodeList to a JavaScript array
shortTitle: NodeList to array
language: javascript
tags: [browser,array]
cover: compass-2
excerpt: Ever needed to convert a `NodeList` to an array in JavaScript? Here's the fastest way to do so.
listed: true
dateModified: 2024-03-21
---
If you've ever worked with `No... | ---
title: Convert a NodeList to a JavaScript array
shortTitle: NodeList to array
language: javascript
tags: [browser,array]
cover: compass-2
excerpt: Ever needed to convert a `NodeList` to an array in JavaScript? Here's the fastest way to do so.
listed: true
dateModified: 2024-03-21
---
If you've ever worked with `No... | code_snippets | ||
17816613-162a-4a3a-824d-7970adbc72f8 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/nodejs-static-file-server.md | unknown | a0adf91c-2053-490b-98c3-c549cdb5fecb | 4 | SemanticChunker@1.0.0 | 720198c547ac245fd5258bc03e15e44492bfd18de4e2e4325d64a7d03e340b39 | [A simple static file server > Omitting the HTML extension]
## Omitting the HTML extension
A staple of most websites is the ability to omit the file extension from the URL when requesting an HTML page. It's a small quality of life improvement that users expect and it would be really nice to add to our static file ser... | unknown | unknown | [A simple static file server > Omitting the HTML extension]
## Omitting the HTML extension
A staple of most websites is the ability to omit the file extension from the URL when requesting an HTML page. It's a small quality of life improvement that users expect and it would be really nice to add to our static file ser... | [A simple static file server > Omitting the HTML extension]
## Omitting the HTML extension
A staple of most websites is the ability to omit the file extension from the URL when requesting an HTML page. It's a small quality of life improvement that users expect and it would be really nice to add to our static file ser... | code_snippets | ||
1d054e71-5839-4c61-b180-32c1b3bc6f62 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/nodejs-static-file-server.md | unknown | a0adf91c-2053-490b-98c3-c549cdb5fecb | 6 | SemanticChunker@1.0.0 | 98abea7d73d86b1549641473a8741561f82e5236af9255dc195cb15f523fdbaa | [A simple static file server > Final touches]
```js
import { readFile, accessSync, constants } from 'fs';
import { createServer } from 'http';
import { join, normalize, resolve, extname } from 'path';
const port = 8000;
const directoryName = './public';
const types = {
html: 'text/html',
css: 'text/css',
js: 'app... | unknown | unknown | [A simple static file server > Final touches]
```js
import { readFile, accessSync, constants } from 'fs';
import { createServer } from 'http';
import { join, normalize, resolve, extname } from 'path';
const port = 8000;
const directoryName = './public';
const types = {
html: 'text/html',
css: 'text/css',
js: 'app... | [A simple static file server > Final touches]
```js
import { readFile, accessSync, constants } from 'fs';
import { createServer } from 'http';
import { join, normalize, resolve, extname } from 'path';
const port = 8000;
const directoryName = './public';
const types = {
html: 'text/html',
css: 'text/css',
js: 'app... | code_snippets | ||
3de64e54-f8d9-43d3-83fb-c2d1d0143258 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/nodejs-static-file-server.md | unknown | a0adf91c-2053-490b-98c3-c549cdb5fecb | 0 | SemanticChunker@1.0.0 | 705c176a6753f985267b23164083c5408d117d16ff22c2948a79bab43283e0e2 | ---
title: Create a static file server with Node.js
shortTitle: Node.js static file server
language: javascript
tags: [node,server]
cover: man-cup-laptop
excerpt: Create your own static file server with Node.js in just 70 lines of code.
listed: true
dateModified: 2022-06-05
--- | unknown | unknown | ---
title: Create a static file server with Node.js
shortTitle: Node.js static file server
language: javascript
tags: [node,server]
cover: man-cup-laptop
excerpt: Create your own static file server with Node.js in just 70 lines of code.
listed: true
dateModified: 2022-06-05
--- | ---
title: Create a static file server with Node.js
shortTitle: Node.js static file server
language: javascript
tags: [node,server]
cover: man-cup-laptop
excerpt: Create your own static file server with Node.js in just 70 lines of code.
listed: true
dateModified: 2022-06-05
--- | code_snippets | ||
487f5b51-8c3a-4d96-b287-7537b4644650 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/nodejs-static-file-server.md | unknown | a0adf91c-2053-490b-98c3-c549cdb5fecb | 5 | SemanticChunker@1.0.0 | 1b318abe07faf6cb2b4e8ec40f8de35bfb63019ac724cfaa51614c017dbd4d74 | [A simple static file server > Final touches]
## Final touches
After implementing all of the above, we can put everything together to create a static file server with all the functionality we need. I'll throw in a couple of finishing touches, such as logging requests to the console and handling a few more file types,... | unknown | unknown | [A simple static file server > Final touches]
## Final touches
After implementing all of the above, we can put everything together to create a static file server with all the functionality we need. I'll throw in a couple of finishing touches, such as logging requests to the console and handling a few more file types,... | [A simple static file server > Final touches]
## Final touches
After implementing all of the above, we can put everything together to create a static file server with all the functionality we need. I'll throw in a couple of finishing touches, such as logging requests to the console and handling a few more file types,... | code_snippets | ||
5204dc09-13c5-42da-811b-8debd8775e06 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/nodejs-static-file-server.md | unknown | a0adf91c-2053-490b-98c3-c549cdb5fecb | 2 | SemanticChunker@1.0.0 | 20c5dfbd39236f53b838d7a9a494722b481c01dfadaa26ba2bc2b85d8cdd413e | [A simple static file server > Modularity]
## Modularity
First and foremost, we don't necessarily want to serve files from the same directory as our Node.js server. To address this problem, we would have to change the directory `fs.readFile()` looks for the file in. To accomplish this, we can specify a directory to s... | unknown | unknown | [A simple static file server > Modularity]
## Modularity
First and foremost, we don't necessarily want to serve files from the same directory as our Node.js server. To address this problem, we would have to change the directory `fs.readFile()` looks for the file in. To accomplish this, we can specify a directory to s... | [A simple static file server > Modularity]
## Modularity
First and foremost, we don't necessarily want to serve files from the same directory as our Node.js server. To address this problem, we would have to change the directory `fs.readFile()` looks for the file in. To accomplish this, we can specify a directory to s... | code_snippets | ||
81f33129-ebc8-444d-b239-b4ea3966bc3e | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/nodejs-static-file-server.md | unknown | a0adf91c-2053-490b-98c3-c549cdb5fecb | 3 | SemanticChunker@1.0.0 | 326d5c57545571fe6978e42af05a75c44fc7460d2b88d8e581bd52d2d3101fb7 | [A simple static file server > Security]
## Security
Our next concern is security. Obviously, we don't want users prying around our machine unauthorized. Currently, it's not impossible to get access to files outside of the specified root directory (e.g. `GET /../../../`). To address this, we can use the `path` module... | unknown | unknown | [A simple static file server > Security]
## Security
Our next concern is security. Obviously, we don't want users prying around our machine unauthorized. Currently, it's not impossible to get access to files outside of the specified root directory (e.g. `GET /../../../`). To address this, we can use the `path` module... | [A simple static file server > Security]
## Security
Our next concern is security. Obviously, we don't want users prying around our machine unauthorized. Currently, it's not impossible to get access to files outside of the specified root directory (e.g. `GET /../../../`). To address this, we can use the `path` module... | code_snippets | ||
eb78251d-a755-471e-b10a-2e429d71589b | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/nodejs-static-file-server.md | unknown | a0adf91c-2053-490b-98c3-c549cdb5fecb | 1 | SemanticChunker@1.0.0 | b10c9984ff9d75b9a796d2495b8ac942a3fbae8f3b7d52f5ebd61faa957802a7 | [A simple static file server]
## A simple static file server
One of the simplest beginner backend projects you can create is a static file server. In its simplest form, a static file server will listen for requests and try to match the requested URL to a file on the local filesystem. Here's a minimal example of that ... | unknown | unknown | [A simple static file server]
## A simple static file server
One of the simplest beginner backend projects you can create is a static file server. In its simplest form, a static file server will listen for requests and try to match the requested URL to a file on the local filesystem. Here's a minimal example of that ... | [A simple static file server]
## A simple static file server
One of the simplest beginner backend projects you can create is a static file server. In its simplest form, a static file server will listen for requests and try to match the requested URL to a file on the local filesystem. Here's a minimal example of that ... | code_snippets | ||
fbfeea57-24df-4280-b1d5-1c7dd59c5715 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/nodejs-chrome-debugging.md | unknown | 51f506e4-e943-4afc-935a-ba650f890723 | 0 | SemanticChunker@1.0.0 | 3f7b9c1fdb009e96fac476788c7e6ca550c665db14d73f48a7453df09209fa25 | ---
title: Debugging Node.js using Chrome Developer Tools
shortTitle: Debug Node.js with Chrome Developer Tools
language: javascript
tags: [node,debugging]
cover: bug
excerpt: Did you know you can use Chrome Developer Tools to debug your Node.js code? Find out how in this short guide.
listed: true
dateModified: 2021-06... | unknown | unknown | ---
title: Debugging Node.js using Chrome Developer Tools
shortTitle: Debug Node.js with Chrome Developer Tools
language: javascript
tags: [node,debugging]
cover: bug
excerpt: Did you know you can use Chrome Developer Tools to debug your Node.js code? Find out how in this short guide.
listed: true
dateModified: 2021-06... | ---
title: Debugging Node.js using Chrome Developer Tools
shortTitle: Debug Node.js with Chrome Developer Tools
language: javascript
tags: [node,debugging]
cover: bug
excerpt: Did you know you can use Chrome Developer Tools to debug your Node.js code? Find out how in this short guide.
listed: true
dateModified: 2021-06... | code_snippets | ||
3277f95d-4146-4ab8-b8ef-975a53e6d078 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/native-data-structures.md | unknown | dec8a246-9181-4d1f-9650-c246406e692f | 1 | SemanticChunker@1.0.0 | 4a27b9cd1fb44dd4fe1dcb76cbd231b60515c15764bd4ba5ee86384d94496647 | [Arrays]
## Arrays
An array is a linear data structure that represents a collection of elements. In JavaScript, arrays don't have a fixed size, while their contents can be of any valid type, even arrays themselves. Arrays are probably the most commonly used data structure and come with a plethora of methods that allo... | unknown | unknown | [Arrays]
## Arrays
An array is a linear data structure that represents a collection of elements. In JavaScript, arrays don't have a fixed size, while their contents can be of any valid type, even arrays themselves. Arrays are probably the most commonly used data structure and come with a plethora of methods that allo... | [Arrays]
## Arrays
An array is a linear data structure that represents a collection of elements. In JavaScript, arrays don't have a fixed size, while their contents can be of any valid type, even arrays themselves. Arrays are probably the most commonly used data structure and come with a plethora of methods that allo... | code_snippets | ||
4a3da701-956e-4e3c-a99c-5a1afa1cb14d | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/native-data-structures.md | unknown | dec8a246-9181-4d1f-9650-c246406e692f | 2 | SemanticChunker@1.0.0 | 04bda5c0ea484dd43794f00cfd07cb6e2ffd79e48adb69c9ed96ba74a691263f | [Arrays > Sets]
## Sets
A set is a linear data structure that represents an ordered collection of unique values. Sets in JavaScript can store any valid type of value, however each value can only occur once based on value equality checking.
```js
const nums = new Set([1, 2, 3]);
nums.add(4);
nums.add(1);
nums.add(5)... | unknown | unknown | [Arrays > Sets]
## Sets
A set is a linear data structure that represents an ordered collection of unique values. Sets in JavaScript can store any valid type of value, however each value can only occur once based on value equality checking.
```js
const nums = new Set([1, 2, 3]);
nums.add(4);
nums.add(1);
nums.add(5)... | [Arrays > Sets]
## Sets
A set is a linear data structure that represents an ordered collection of unique values. Sets in JavaScript can store any valid type of value, however each value can only occur once based on value equality checking.
```js
const nums = new Set([1, 2, 3]);
nums.add(4);
nums.add(1);
nums.add(5)... | code_snippets | ||
b2a0c79c-ee6d-4a88-a330-54bb5b1a953c | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/native-data-structures.md | unknown | dec8a246-9181-4d1f-9650-c246406e692f | 0 | SemanticChunker@1.0.0 | 489cb797c249e4eb5113434f914c9278c11cc6fe72d47e2b8cf2fd84f69e06f8 | ---
title: Native JavaScript Data Structures
shortTitle: Native Data Structures
language: javascript
tags: [array]
cover: purple-flower-macro-2
excerpt: JavaScript provides a handful of native data structures that you can start using in your code right now.
listed: true
dateModified: 2021-09-05
--- | unknown | unknown | ---
title: Native JavaScript Data Structures
shortTitle: Native Data Structures
language: javascript
tags: [array]
cover: purple-flower-macro-2
excerpt: JavaScript provides a handful of native data structures that you can start using in your code right now.
listed: true
dateModified: 2021-09-05
--- | ---
title: Native JavaScript Data Structures
shortTitle: Native Data Structures
language: javascript
tags: [array]
cover: purple-flower-macro-2
excerpt: JavaScript provides a handful of native data structures that you can start using in your code right now.
listed: true
dateModified: 2021-09-05
--- | code_snippets | ||
ef516770-7e1c-4337-b768-568eb1794164 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/native-data-structures.md | unknown | dec8a246-9181-4d1f-9650-c246406e692f | 3 | SemanticChunker@1.0.0 | 35062abb54ea1af8cea5c38c151718d0187f48325f395e6ae896cb67ad625d1a | [Arrays > Maps]
## Maps
A map is an associative data structure that represents a keyed collection of elements. Each key in a JavaScript Map has to be unique and either a primitive value or an object, whereas the values of the map can be of any valid type.
```js
const items = new Map([
[1, { name: 'John' }],
[2, { ... | unknown | unknown | [Arrays > Maps]
## Maps
A map is an associative data structure that represents a keyed collection of elements. Each key in a JavaScript Map has to be unique and either a primitive value or an object, whereas the values of the map can be of any valid type.
```js
const items = new Map([
[1, { name: 'John' }],
[2, { ... | [Arrays > Maps]
## Maps
A map is an associative data structure that represents a keyed collection of elements. Each key in a JavaScript Map has to be unique and either a primitive value or an object, whereas the values of the map can be of any valid type.
```js
const items = new Map([
[1, { name: 'John' }],
[2, { ... | code_snippets | ||
173493de-6ebd-4b11-8258-1f989cecea52 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/naming-conventions.md | unknown | 76d1fb3f-0b2e-484b-b486-85a56f6f8037 | 5 | SemanticChunker@1.0.0 | f7e4816b153375eabd824180fe8b77948f580a1d027244c8e92fa5f636d042ba | [Variables > Private]
## Private
- Prefix any variable or function with `_` to show intention for it to be private.
- As a convention, this will not prevent other parts of the code from accessing it. | unknown | unknown | [Variables > Private]
## Private
- Prefix any variable or function with `_` to show intention for it to be private.
- As a convention, this will not prevent other parts of the code from accessing it. | [Variables > Private]
## Private
- Prefix any variable or function with `_` to show intention for it to be private.
- As a convention, this will not prevent other parts of the code from accessing it. | code_snippets | ||
1ee4956b-2269-4818-8c18-2f4cc38f53a2 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/naming-conventions.md | unknown | 76d1fb3f-0b2e-484b-b486-85a56f6f8037 | 0 | SemanticChunker@1.0.0 | b76ec8d3009eb0bb6868d451520fd8ac1f68349d09905defaf21d661bd2c60ad | ---
title: JavaScript naming conventions
shortTitle: Naming conventions
language: javascript
tags: [variable,cheatsheet]
cover: naming-conventions
excerpt: Naming conventions make code easier to read and understand. Learn how to name your variables in JavaScript with this handy guide.
listed: true
dateModified: 2021-06... | unknown | unknown | ---
title: JavaScript naming conventions
shortTitle: Naming conventions
language: javascript
tags: [variable,cheatsheet]
cover: naming-conventions
excerpt: Naming conventions make code easier to read and understand. Learn how to name your variables in JavaScript with this handy guide.
listed: true
dateModified: 2021-06... | ---
title: JavaScript naming conventions
shortTitle: Naming conventions
language: javascript
tags: [variable,cheatsheet]
cover: naming-conventions
excerpt: Naming conventions make code easier to read and understand. Learn how to name your variables in JavaScript with this handy guide.
listed: true
dateModified: 2021-06... | code_snippets | ||
3cf9e8fb-dfa4-4075-9a85-49381ae9f847 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/naming-conventions.md | unknown | 76d1fb3f-0b2e-484b-b486-85a56f6f8037 | 3 | SemanticChunker@1.0.0 | 6c8fe16bd099fc2da0fae528466cfc492aadf23cf21fff1fc8349dd196625e5d | [Variables > Constant]
## Constant
- Names are case-sensitive, lowercase and uppercase are different.
- Define constants at the top of your file, function or class.
- Sometimes `UPPER_SNAKE_CASE` is used, while other times plain `camelCase`. | unknown | unknown | [Variables > Constant]
## Constant
- Names are case-sensitive, lowercase and uppercase are different.
- Define constants at the top of your file, function or class.
- Sometimes `UPPER_SNAKE_CASE` is used, while other times plain `camelCase`. | [Variables > Constant]
## Constant
- Names are case-sensitive, lowercase and uppercase are different.
- Define constants at the top of your file, function or class.
- Sometimes `UPPER_SNAKE_CASE` is used, while other times plain `camelCase`. | code_snippets | ||
a31f23c6-cae3-4c35-872e-b758211e7a23 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/naming-conventions.md | unknown | 76d1fb3f-0b2e-484b-b486-85a56f6f8037 | 4 | SemanticChunker@1.0.0 | f7f9df9a84e814a9d3292226f57f266acce9e4b4ce1b9eec09a877324c603a9a | [Variables > Classes]
## Classes
- Names are case-sensitive, lowercase and uppercase are different.
- Start class names with a capital letter, use `PascalCase` for names.
- Use descriptive names, explaining the functionality of the class.
- Components, which are used in frontend frameworks follow the same rules. | unknown | unknown | [Variables > Classes]
## Classes
- Names are case-sensitive, lowercase and uppercase are different.
- Start class names with a capital letter, use `PascalCase` for names.
- Use descriptive names, explaining the functionality of the class.
- Components, which are used in frontend frameworks follow the same rules. | [Variables > Classes]
## Classes
- Names are case-sensitive, lowercase and uppercase are different.
- Start class names with a capital letter, use `PascalCase` for names.
- Use descriptive names, explaining the functionality of the class.
- Components, which are used in frontend frameworks follow the same rules. | code_snippets | ||
b8057c09-d23f-4885-be26-0130ff4e21ee | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/naming-conventions.md | unknown | 76d1fb3f-0b2e-484b-b486-85a56f6f8037 | 1 | SemanticChunker@1.0.0 | d24ff37ad299820fd7f76dc5d26eb5e78c55673cabdcfd9e4c1fe48db389dc2c | [Variables]
## Variables
- Names are case-sensitive, lowercase and uppercase are different.
- Start variable names with a letter, use `camelCase` for names.
- Variable names should be self-descriptive, describing the stored value.
- Boolean variables are usually prefixed with `is` or `has`. | unknown | unknown | [Variables]
## Variables
- Names are case-sensitive, lowercase and uppercase are different.
- Start variable names with a letter, use `camelCase` for names.
- Variable names should be self-descriptive, describing the stored value.
- Boolean variables are usually prefixed with `is` or `has`. | [Variables]
## Variables
- Names are case-sensitive, lowercase and uppercase are different.
- Start variable names with a letter, use `camelCase` for names.
- Variable names should be self-descriptive, describing the stored value.
- Boolean variables are usually prefixed with `is` or `has`. | code_snippets | ||
d5047299-0ad6-481d-a250-9f8f14fa4899 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/naming-conventions.md | unknown | 76d1fb3f-0b2e-484b-b486-85a56f6f8037 | 2 | SemanticChunker@1.0.0 | c9f10a2fbc93743109beb4083a57e3c15fcb25d4e0c81eb5274948736613772c | [Variables > Functions]
## Functions
- Names are case-sensitive, lowercase and uppercase are different.
- Start function names with a letter, use `camelCase` for names.
- Use descriptive names, usually verbs in the imperative form.
- Common prefixes are `get`, `make`, `apply` etc.
- Class methods follow the same rule... | unknown | unknown | [Variables > Functions]
## Functions
- Names are case-sensitive, lowercase and uppercase are different.
- Start function names with a letter, use `camelCase` for names.
- Use descriptive names, usually verbs in the imperative form.
- Common prefixes are `get`, `make`, `apply` etc.
- Class methods follow the same rule... | [Variables > Functions]
## Functions
- Names are case-sensitive, lowercase and uppercase are different.
- Start function names with a letter, use `camelCase` for names.
- Use descriptive names, usually verbs in the imperative form.
- Common prefixes are `get`, `make`, `apply` etc.
- Class methods follow the same rule... | code_snippets | ||
1f0dfa9d-9d23-4dc9-b3af-89e9a083cf95 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/myers-diff-algorithm.md | unknown | 964b0b9b-6a7d-4dc9-b106-6ce5835f255a | 4 | SemanticChunker@1.0.0 | 32b5079d21734c6b549d841d921b5b36d90a1278d58c78ce35482d19093fa340 | [Problem statement > Algorithm implementation]
## Algorithm implementation
As you can probably tell, this is very similar to the LCS algorithm, but with a few tweaks to handle deletions and insertions. Let's implement this in JavaScript. We'll again make sure it can handle **both strings and arrays** as input.
```js... | unknown | unknown | [Problem statement > Algorithm implementation]
## Algorithm implementation
As you can probably tell, this is very similar to the LCS algorithm, but with a few tweaks to handle deletions and insertions. Let's implement this in JavaScript. We'll again make sure it can handle **both strings and arrays** as input.
```js... | [Problem statement > Algorithm implementation]
## Algorithm implementation
As you can probably tell, this is very similar to the LCS algorithm, but with a few tweaks to handle deletions and insertions. Let's implement this in JavaScript. We'll again make sure it can handle **both strings and arrays** as input.
```js... | code_snippets | ||
37ccc2ec-f1c9-4190-8d6e-c428370cb1ad | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/myers-diff-algorithm.md | unknown | 964b0b9b-6a7d-4dc9-b106-6ce5835f255a | 5 | SemanticChunker@1.0.0 | 859c958e20584ee3fb9387b825c555c772cabea3d0b1145a08cf991d864c0fe4 | [Problem statement > Visualizing the diff]
## Visualizing the diff
This is nice and all, but how would one go about **visualizing it the way Git does**? It's simple, actually! All we need to do is iterate over the `diffs` array and print the values and a prefix based on the operation. While we're at it, we may as wel... | unknown | unknown | [Problem statement > Visualizing the diff]
## Visualizing the diff
This is nice and all, but how would one go about **visualizing it the way Git does**? It's simple, actually! All we need to do is iterate over the `diffs` array and print the values and a prefix based on the operation. While we're at it, we may as wel... | [Problem statement > Visualizing the diff]
## Visualizing the diff
This is nice and all, but how would one go about **visualizing it the way Git does**? It's simple, actually! All we need to do is iterate over the `diffs` array and print the values and a prefix based on the operation. While we're at it, we may as wel... | code_snippets | ||
3c04d596-2791-4801-a622-5faa08fc29ae | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/myers-diff-algorithm.md | unknown | 964b0b9b-6a7d-4dc9-b106-6ce5835f255a | 3 | SemanticChunker@1.0.0 | e9912bab63964b184b037409253e9f1feb14c704524ca9e90c573035dda09278 | [Problem statement > Solution explanation]
> [!NOTE]
>
> There are various **optimizations** that can be made to this algorithm, but this article is meant primarily as a **learning resource**. Therefore, I'll keep things nice and simple and leave these optimizations out for now. | unknown | unknown | [Problem statement > Solution explanation]
> [!NOTE]
>
> There are various **optimizations** that can be made to this algorithm, but this article is meant primarily as a **learning resource**. Therefore, I'll keep things nice and simple and leave these optimizations out for now. | [Problem statement > Solution explanation]
> [!NOTE]
>
> There are various **optimizations** that can be made to this algorithm, but this article is meant primarily as a **learning resource**. Therefore, I'll keep things nice and simple and leave these optimizations out for now. | code_snippets | ||
6d94ceea-3510-4429-91d2-4449ddb8c163 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/myers-diff-algorithm.md | unknown | 964b0b9b-6a7d-4dc9-b106-6ce5835f255a | 2 | SemanticChunker@1.0.0 | b283b5b66e8bdb8ee3cdec5986882d5eb1e0ada22dcb4d21a3df02c7abe869a3 | [Problem statement > Solution explanation]
## Solution explanation
Same as the previous problem, we'll use <dfn title='A problem-solving method that breaks down a complex problem into smaller, manageable parts, solves each part, and then optimizes those solutions to find the best overall answer.'>**dynamic programmin... | unknown | unknown | [Problem statement > Solution explanation]
## Solution explanation
Same as the previous problem, we'll use <dfn title='A problem-solving method that breaks down a complex problem into smaller, manageable parts, solves each part, and then optimizes those solutions to find the best overall answer.'>**dynamic programmin... | [Problem statement > Solution explanation]
## Solution explanation
Same as the previous problem, we'll use <dfn title='A problem-solving method that breaks down a complex problem into smaller, manageable parts, solves each part, and then optimizes those solutions to find the best overall answer.'>**dynamic programmin... | code_snippets | ||
c9d72519-b34f-44d6-bbd5-d09b2408ee88 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/myers-diff-algorithm.md | unknown | 964b0b9b-6a7d-4dc9-b106-6ce5835f255a | 0 | SemanticChunker@1.0.0 | dc8de52b22c61f6907c9ad20a6bf6fcb9977a5e5f5c0a459e98397fdd565de19 | ---
title: How can I calculate the diff between two strings in JavaScript?
shortTitle: Myers Diff Algorithm
language: javascript
tags: [string,array,algorithm]
cover: peaches
excerpt: Delve deep into the Myers diff algorithm and learn how to calculate the difference between two strings in JavaScript, the way Git does.
... | unknown | unknown | ---
title: How can I calculate the diff between two strings in JavaScript?
shortTitle: Myers Diff Algorithm
language: javascript
tags: [string,array,algorithm]
cover: peaches
excerpt: Delve deep into the Myers diff algorithm and learn how to calculate the difference between two strings in JavaScript, the way Git does.
... | ---
title: How can I calculate the diff between two strings in JavaScript?
shortTitle: Myers Diff Algorithm
language: javascript
tags: [string,array,algorithm]
cover: peaches
excerpt: Delve deep into the Myers diff algorithm and learn how to calculate the difference between two strings in JavaScript, the way Git does.
... | code_snippets | ||
d2a8f688-bf46-42d4-9bb0-6f393c740ec9 | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/myers-diff-algorithm.md | unknown | 964b0b9b-6a7d-4dc9-b106-6ce5835f255a | 1 | SemanticChunker@1.0.0 | b56304eed73b6080a417d5cb49a368226b4af40dd5436fda6254424b0c58dd9f | [Problem statement]
## Problem statement
I find that examples always help clarify things, so let's start with one. Assuming two sequences, `a` and `b`, we want to find the **minimum number of edits** required to convert `a` into `b`. These edits can be either **insertions**, **deletions**, or **replacements**. For th... | unknown | unknown | [Problem statement]
## Problem statement
I find that examples always help clarify things, so let's start with one. Assuming two sequences, `a` and `b`, we want to find the **minimum number of edits** required to convert `a` into `b`. These edits can be either **insertions**, **deletions**, or **replacements**. For th... | [Problem statement]
## Problem statement
I find that examples always help clarify things, so let's start with one. Assuming two sequences, `a` and `b`, we want to find the **minimum number of edits** required to convert `a` into `b`. These edits can be either **insertions**, **deletions**, or **replacements**. For th... | code_snippets | ||
ea4037a8-fe32-412f-8290-d9db4143318d | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/myers-diff-algorithm.md | unknown | 964b0b9b-6a7d-4dc9-b106-6ce5835f255a | 6 | SemanticChunker@1.0.0 | 553e52ec9241d376899b6ed83cbffda2d5cd6bf38234021f212c3ac9a6d4cff7 | [Problem statement > Visualizing the diff]
Looks a lot like a Git diff, doesn't it? You can definitely make it even better by adding colors or skipping over long unchanged subsequences, but I'll leave that up to you. | unknown | unknown | [Problem statement > Visualizing the diff]
Looks a lot like a Git diff, doesn't it? You can definitely make it even better by adding colors or skipping over long unchanged subsequences, but I'll leave that up to you. | [Problem statement > Visualizing the diff]
Looks a lot like a Git diff, doesn't it? You can definitely make it even better by adding colors or skipping over long unchanged subsequences, but I'll leave that up to you. | code_snippets | ||
185572ad-d1c8-4173-8883-002b0f75249b | unknown | file:///home/sanjeev/Downloads/depthapi/datasets/30-seconds-of-code/content/snippets/js/s/most-frequent-array-element.md | unknown | bb5b75a5-851e-4bfe-94b8-6f5bd2aa30ee | 2 | SemanticChunker@1.0.0 | 4a87d89b240af941d07a4bbca693feae4ce1863aa5705333bc9e13aa79b3e96d | [Most frequent element in an array of primitives > Most frequent element in an array of objects]
## Most frequent element in an array of objects
When dealing with **objects**, you can use the same approach, but you'll need a **mapping function** to extract the value you want to compare. As primitive values can be com... | unknown | unknown | [Most frequent element in an array of primitives > Most frequent element in an array of objects]
## Most frequent element in an array of objects
When dealing with **objects**, you can use the same approach, but you'll need a **mapping function** to extract the value you want to compare. As primitive values can be com... | [Most frequent element in an array of primitives > Most frequent element in an array of objects]
## Most frequent element in an array of objects
When dealing with **objects**, you can use the same approach, but you'll need a **mapping function** to extract the value you want to compare. As primitive values can be com... | code_snippets |
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