id stringlengths 16 145 | text stringlengths 1 179k | title stringclasses 1
value |
|---|---|---|
Mmdn_RegExp/exec_77_0.txt | ## Syntax | |
Mmdn_RegExp/Regularexpressions_97_0.txt | ### Using special characters | |
Mmdn_RegExp/toString_71_0.txt | 4. [ ` Function.prototype.call() ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/call)
5. [ ` Function.prototype.toString() ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/toString)
10. Static properties
1. [ ` Function.prototype.arguments ` ](/en-US/docs/Web/JavaScript/Reference/Globa... | |
Mmdn_RegExp/Mmdn_RegExp_22_0.txt | * Skip to main content
* Skip to search
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Mmdn_RegExp/exec_66_0.txt | * [ Español ](/es/docs/Web/JavaScript/Reference/Global_Objects/RegExp/exec)
* [ Français ](/fr/docs/Web/JavaScript/Reference/Global_Objects/RegExp/exec)
* [ æ¥æ¬èª ](/ja/docs/Web/JavaScript/Reference/Global_Objects/RegExp/exec)
* [ Português (do Brasil) ](/pt-BR/docs/Web/JavaScript/Reference/Global_Objects/R... | |
Mmdn_RegExp/Regularexpressions_198_0.txt | An online interactive tutorials, Cheat sheet, & Playground. | |
Mmdn_RegExp/toString_22_0.txt | ](/en-US/docs/Mozilla/Add-ons/WebExtensions) | |
Mmdn_RegExp/toString_114_0.txt | ## Our communities | |
Mmdn_RegExp/exec_7_0.txt | ](/en-US/docs/Web/HTML) | |
Mmdn_RegExp/Mmdn_RegExp_23_1.txt | ` RegExp: lastIndex ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastIndex)
9. [ ` RegExp.lastMatch ($&) ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastMatch) Deprecated
10. [ ` RegExp.lastParen ($+) ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastParen)... | |
Mmdn_RegExp/exec_28_0.txt | ](/en-US/docs/Learn) | |
Mmdn_RegExp/exec_92_0.txt | This property is only present when the [ ` d ` ](/en-
US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/hasIndices) flag is
set. It is an array where each entry represents the bounds of a substring
match. The index of each element in this array corresponds to the index of the
respective substring match in the arra... | |
Mmdn_RegExp/Regularexpressions_116_0.txt | [ Quantifiers ](/en-
US/docs/Web/JavaScript/Guide/Regular_expressions/Quantifiers) | |
Mmdn_RegExp/Regularexpressions_27_0.txt | Learn web development | |
Mmdn_RegExp/Regularexpressions_6_0.txt | Structure of content on the web | |
Mmdn_RegExp/javascriptregexpexer_0_0.txt | [ w3resource ](https://www.w3resource.com/index.php) | |
Mmdn_RegExp/javascriptregexpexer_3_0.txt | ## JavaScript validation with regular expression: Exercise-1 with Solution | |
Mmdn_RegExp/Mmdn_RegExp_12_4.txt |
With some abstraction, you can require ` lastIndex ` to be set to a particular
value before each ` exec() ` call.
js
function createMatcher(pattern) {
// Create a copy, so that the original regex is never updated
const regex = new RegExp(pattern, "g");
return (input, offset) => {
... | |
Mmdn_RegExp/Regularexpressions_91_0.txt |
Using the constructor function provides runtime compilation of the regular
expression. Use the constructor function when you know the regular expression
pattern will be changing, or you don't know the pattern and are getting it
from another source, such as user input. | |
Mmdn_RegExp/exec_74_0.txt | # RegExp.prototype.exec() | |
Mmdn_RegExp/Regularexpressions_0_0.txt | * Skip to main content
* Skip to search
* Skip to select language | |
Mmdn_RegExp/exec_78_0.txt | exec(str) | |
Mmdn_RegExp/Regularexpressions_40_0.txt | ](/en-US/docs/Learn/JavaScript) | |
Mmdn_RegExp/toString_110_0.txt | ## MDN | |
Mmdn_RegExp/Mmdn_RegExp_3_1.txt | ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastIndex)
9. [ ` RegExp.lastMatch ($&) ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastMatch) Deprecated
10. [ ` RegExp.lastParen ($+) ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastParen) Deprecated
11... | |
Mmdn_RegExp/Regularexpressions_89_0.txt | * Or calling the constructor function of the [ ` RegExp ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp) object, as follows: | |
Mmdn_RegExp/Regularexpressions_109_0.txt | Special characters in regular expressions. Characters / constructs |
Corresponding article
---|---
` [xyz] ` , ` [^xyz] ` , ` . ` , ` \d ` , ` \D ` , ` \w ` , ` \W ` , ` \s ` ,
` \S ` , ` \t ` , ` \r ` , ` \n ` , ` \v ` , ` \f ` , ` [\b] ` , ` \0 ` , ` \c
_X_ ` , ` \x _hh_ ` , ` \u _hhhh_ ` , ` \u _{hhhh}_ ` , ` _x_ ... | |
Mmdn_RegExp/exec_35_0.txt | * [ CSS | |
Mmdn_RegExp/Mmdn_RegExp_0_7.txt | en-US/docs/Web/JavaScript/Reference/Errors/Invalid_for-in_initializer)
28. [ SyntaxError: function statement requires a name ](/en-US/docs/Web/JavaScript/Reference/Errors/Unnamed_function_statement)
29. [ SyntaxError: getter and setter for private name #x should either be both static or non-static ](/en-US/docs... | |
Mmdn_RegExp/exec_70_0.txt | 1. [ Standard built-in objects ](/en-US/docs/Web/JavaScript/Reference/Global_Objects)
2. [ ` RegExp ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp)
3. Constructor
1. [ ` RegExp() constructor ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/RegExp)
4. Static properties
1. [ ` RegExp[@@speci... | |
Mmdn_RegExp/Regularexpressions_178_0.txt | ### Using special characters to verify input | |
Mmdn_RegExp/Regularexpressions_223_0.txt | ]: Deprecated. Not for use in new websites.
*[ | |
Mmdn_RegExp/Regularexpressions_90_0.txt |
const re = new RegExp("ab+c"); | |
Mmdn_RegExp/Regularexpressions_20_0.txt | * [ Web Extensions | |
Mmdn_RegExp/Regularexpressions_158_0.txt | // ["fee ", "fi ", "fo "] | |
Mmdn_RegExp/Regularexpressions_186_0.txt | const form = document.querySelector("#form");
const input = document.querySelector("#phone");
const output = document.querySelector("#output"); | |
Mmdn_RegExp/toString_68_0.txt | ## In this article | |
Mmdn_RegExp/Regularexpressions_81_0.txt | # Regular expressions | |
Mmdn_RegExp/exec_122_0.txt | BCD tables only load in the browser with JavaScript enabled. Enable
JavaScript to view data. | |
Mmdn_RegExp/Regularexpressions_188_0.txt | function testInfo(phoneInput) {
const ok = re.exec(phoneInput.value); | |
Mmdn_RegExp/exec_23_0.txt | * [ Web Technology | |
Mmdn_RegExp/Regularexpressions_159_0.txt |
You could replace the line: | |
Mmdn_RegExp/Regularexpressions_212_0.txt | * [ About ](/en-US/about)
* [ Blog ](/en-US/blog/)
* [ Careers ](https://www.mozilla.org/en-US/careers/listings/?team=ProdOps)
* [ Advertise with us ](/en-US/advertising) | |
Mmdn_RegExp/Regularexpressions_48_0.txt | Get real-time assistance and support | |
Mmdn_RegExp/javascriptregexpexer_2_0.txt | Last update on April 13 2024 13:27:19 (UTC/GMT +8 hours) | |
Mmdn_RegExp/javascriptregexpexer_12_0.txt |
**Flowchart:** | |
Mmdn_RegExp/exec_11_0.txt | * [ JavaScript | |
Mmdn_RegExp/exec_99_0.txt | ## Examples | |
Mmdn_RegExp/toString_29_0.txt | * [ MDN Learning Area | |
Mmdn_RegExp/Regularexpressions_47_0.txt | * [ AI Help (beta) | |
Mmdn_RegExp/toString_105_0.txt | This page was last modified on Aug 24, 2023 by [ MDN contributors ](/en-
US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/toString/contributors.txt)
. | |
Mmdn_RegExp/toString_28_0.txt | ](/en-US/docs/Learn) | |
Mmdn_RegExp/toString_7_0.txt | ](/en-US/docs/Web/HTML) | |
Mmdn_RegExp/Regularexpressions_172_0.txt | The ` u ` flag is used to create "unicode" regular expressions; that is,
regular expressions which support matching against unicode text. An important
feature that's enabled in unicode mode is [ Unicode property escapes ](/en-
US/docs/Web/JavaScript/Reference/Regular_expressions/Unicode_character_class_escape)
. For ex... | |
Mmdn_RegExp/Regularexpressions_57_0.txt | Frequently asked questions about MDN Plus | |
Mmdn_RegExp/toString_21_0.txt | Developing extensions for web browsers | |
Mmdn_RegExp/Mmdn_RegExp_22_1.txt | dex ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastIndex)
9. [ ` RegExp.lastMatch ($&) ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastMatch) Deprecated
10. [ ` RegExp.lastParen ($+) ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastParen) Deprecated
... | |
Mmdn_RegExp/exec_34_0.txt | ](/en-US/docs/Learn/HTML) | |
Mmdn_RegExp/Mmdn_RegExp_6_1.txt | ` RegExp: lastIndex ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastIndex)
9. [ ` RegExp.lastMatch ($&) ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastMatch) Deprecated
10. [ ` RegExp.lastParen ($+) ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastParen)... | |
Mmdn_RegExp/toString_42_0.txt | Learn to make the web accessible to all | |
Mmdn_RegExp/Regularexpressions_199_0.txt | [ Regex visualizer ](https://extendsclass.com/regex-tester.html) | |
Mmdn_RegExp/Regularexpressions_82_0.txt | * [ « Previous ](/en-US/docs/Web/JavaScript/Guide/Text_formatting)
* [ Next » ](/en-US/docs/Web/JavaScript/Guide/Indexed_collections) | |
Mmdn_RegExp/toString_61_0.txt | Theme | |
Mmdn_RegExp/Mmdn_RegExp_1_1.txt | eprecated
8. [ ` RegExp: lastIndex ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastIndex)
9. [ ` RegExp.lastMatch ($&) ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastMatch) Deprecated
10. [ ` RegExp.lastParen ($+) ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objec... | |
Mmdn_RegExp/javascriptregexpexer_24_0.txt | * * * | |
Mmdn_RegExp/Regularexpressions_210_0.txt | * [ MDN on Mastodon ](https://mozilla.social/@mdn)
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Mmdn_RegExp/exec_141_0.txt | * [ Web Technologies ](/en-US/docs/Web)
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Mmdn_RegExp/exec_87_0.txt | ` input ` | |
Mmdn_RegExp/Mmdn_RegExp_1_4.txt | ndex.md?plain=1
"Folder: en-us/web/javascript/reference/global_objects/regexp/@@matchall
\(Opens in a new tab\)") ⢠[ Report a problem with this content
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Mmdn_RegExp/Regularexpressions_85_0.txt | You construct a regular expression in one of two ways: | |
Mmdn_RegExp/Regularexpressions_151_0.txt | Flag | Description | Corresponding property
---|---|---
` d ` | Generate indices for substring matches. | [ ` hasIndices ` ](/en-
US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/hasIndices)
` g ` | Global search. | [ ` global ` ](/en-
US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/global)
` i `... | |
Mmdn_RegExp/Regularexpressions_39_0.txt | Learn to run scripts in the browser | |
Mmdn_RegExp/Regularexpressions_73_0.txt | 10. [ Bitwise NOT (~) ](/en-US/docs/Web/JavaScript/Reference/Operators/Bitwise_NOT)
11. [ Bitwise OR (|) ](/en-US/docs/Web/JavaScript/Reference/Operators/Bitwise_OR)
12. [ Bitwise OR assignment (|=) ](/en-US/docs/Web/JavaScript/Reference/Operators/Bitwise_OR_assignment)
13. [ Bitwise XOR (^) ](/en-US/docs/Web/JavaScrip... | |
Mmdn_RegExp/Mmdn_RegExp_19_2.txt | 2. [ ` Object.prototype.__proto__ ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/proto) Deprecated
13. Methods
1. [ ` Object.prototype.__defineGetter__() ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/__defineGetter__) Deprecated
2. [ ` Object.prototype.__defineSetter__(... | |
Mmdn_RegExp/exec_108_0.txt | For example, assume you have this script: | |
Mmdn_RegExp/Regularexpressions_74_0.txt | 50. [ null ](/en-US/docs/Web/JavaScript/Reference/Operators/null)
51. [ Nullish coalescing assignment (??=) ](/en-US/docs/Web/JavaScript/Reference/Operators/Nullish_coalescing_assignment)
52. [ Nullish coalescing operator (??) ](/en-US/docs/Web/JavaScript/Reference/Operators/Nullish_coalescing)
53. [ Object initializer... | |
Mmdn_RegExp/toString_57_0.txt | Frequently asked questions about MDN Plus | |
Mmdn_RegExp/toString_43_0.txt | ](/en-US/docs/Web/Accessibility) | |
Mmdn_RegExp/toString_49_0.txt | ](/en-US/plus/ai-help) | |
Mmdn_RegExp/Regularexpressions_193_0.txt | [ RegExr ](https://regexr.com/) | |
Mmdn_RegExp/toString_106_0.txt | [ View this page on GitHub
](https://github.com/mdn/content/blob/main/files/en-
us/web/javascript/reference/global_objects/regexp/tostring/index.md?plain=1
"Folder: en-us/web/javascript/reference/global_objects/regexp/tostring \(Opens
in a new tab\)") ⢠[ Report a problem with this content
](https://github.com/mdn/c... | |
Mmdn_RegExp/Mmdn_RegExp_4_1.txt | dex ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastIndex)
9. [ ` RegExp.lastMatch ($&) ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastMatch) Deprecated
10. [ ` RegExp.lastParen ($+) ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastParen) Deprecated
... | |
Mmdn_RegExp/Regularexpressions_184_0.txt | <p>
Enter your phone number (with area code) and then click "Check".
<br />
The expected format is like ###-###-####.
</p>
<form id="form">
<input id="phone" />
<button type="submit">Check</button>
</form>
<p id="output"></p> | |
Mmdn_RegExp/toString_59_0.txt | * [ Curriculum New ](/en-US/curriculum/)
* [ Blog ](/en-US/blog/)
* [ Play ](/en-US/play)
* [ AI Help Beta ](/en-US/plus/ai-help) | |
Mmdn_RegExp/Regularexpressions_181_0.txt | 1. the beginning of the line of data: ` ^ `
2. followed by three numeric characters ` \d{3} ` OR ` | ` a left parenthesis ` \( ` , followed by three digits ` \d{3} ` , followed by a close parenthesis ` \) ` , in a non-capturing group ` (?:) `
3. followed by one dash, forward slash, or decimal point in a capturing group... | |
Mmdn_RegExp/toString_89_0.txt | const myExp = new RegExp("a+b+c");
console.log(myExp.toString()); // '/a+b+c/' | |
Mmdn_RegExp/Mmdn_RegExp_21_1.txt | 8. [ ` RegExp: lastIndex ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastIndex)
9. [ ` RegExp.lastMatch ($&) ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastMatch) Deprecated
10. [ ` RegExp.lastParen ($+) ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/la... | |
Mmdn_RegExp/Mmdn_RegExp_27_2.txt | Object/constructor)
2. [ ` Object.prototype.__proto__ ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/proto) Deprecated
13. Methods
1. [ ` Object.prototype.__defineGetter__() ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/__defineGetter__) Deprecated
2. [ ` Object.prototy... | |
Mmdn_RegExp/toString_26_0.txt | * Guides [ Guides ](/en-US/docs/Learn)
* [ Overview / MDN Learning Area | |
Mmdn_RegExp/Regularexpressions_132_0.txt | When you want to know whether a pattern is found in a string, use the ` test()
` or ` search() ` methods; for more information (but slower execution) use the
` exec() ` or ` match() ` methods. If you use ` exec() ` or ` match() ` and if
the match succeeds, these methods return an array and update properties of the
asso... | |
Mmdn_RegExp/Regularexpressions_30_0.txt | Learn web development | |
Mmdn_RegExp/toString_58_0.txt | ](/en-US/plus/docs/faq) | |
Mmdn_RegExp/exec_130_0.txt | [ View this page on GitHub
](https://github.com/mdn/content/blob/main/files/en-
us/web/javascript/reference/global_objects/regexp/exec/index.md?plain=1
"Folder: en-us/web/javascript/reference/global_objects/regexp/exec \(Opens in
a new tab\)") ⢠[ Report a problem with this content
](https://github.com/mdn/content/i... | |
Mmdn_RegExp/exec_19_0.txt | ](/en-US/docs/Web/API) | |
Mmdn_RegExp/exec_21_0.txt | Developing extensions for web browsers | |
Mmdn_RegExp/Regularexpressions_144_0.txt | // "The value of lastIndex is 5" | |
Mmdn_RegExp/Mmdn_RegExp_24_1.txt | ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastIndex)
9. [ ` RegExp.lastMatch ($&) ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastMatch) Deprecated
10. [ ` RegExp.lastParen ($+) ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastParen) Deprecated
11... | |
Mmdn_RegExp/Mmdn_RegExp_17_3.txt | contributors.txt)
.
[ View this page on GitHub
](https://github.com/mdn/content/blob/main/files/en-
us/web/javascript/reference/global_objects/regexp/multiline/index.md?plain=1
"Folder: en-us/web/javascript/reference/global_objects/regexp/multiline
\(Opens in a new tab\)") ⢠[ Report a problem with this content
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