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how to write regular expression in javascript

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YOU.com answered on March 12, 2020 Popularity 7/10 Helpfulness 2/10

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how to write regular expression in javascript

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// Creating a regular expression in JavaScript
const regex = /pattern/;

// Example: Matching a pattern and extracting the result
const text = "This is a sample text matching the pattern";
const pattern = /pattern/;
const result = text.match(pattern);
console.log(result);

Popularity 7/10 Helpfulness 2/10 Language javascript

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Contributed on Sep 12 2023

YOU.com

0 Answers Avg Quality 2/10

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Regular expression javascript

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^.*(?=.{8,})(?=.*[a-zA-Z])(?=.*\d)(?=.*[!#$%&? "]).*$

---

^.*              : Start
(?=.{8,})        : Length
(?=.*[a-zA-Z])   : Letters
(?=.*\d)         : Digits
(?=.*[!#$%&? "]) : Special characters
.*$              : End

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: stackoverflow.com

Tags: expression e

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Contributed on Oct 23 2022

MD Zubair Alam Roktim

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regular expression javascript

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// Tests website Regular Expression against document.location (current page url)
if (/^https\:\/\/example\.com\/$/.exec(document.location)){
	console.log("Look mam, I can regex!");
}

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: expression e

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Contributed on Mar 12 2020

Kaotik

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what is regular expression in javascript

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let re = /ol/, 
Characters \, ., \cX, \d, \D, \f, \n, \r, \s, \S, \t, \v, \w, \W, \0, \xhh, \uhhhh, \uhhhhh, [\b]	
Assertions 	^, $, x(?=y), x(?!y), (?<=y)x, (?<!y)x, \b, \B
Groups 		(x), (?:x), (?<Name>x), x|y, [xyz], [^xyz], \Number	
Quantifiers *, +, ?, x{n}, x{n,}, x{n,m}
Unicode \p{UnicodeProperty}, \P{UnicodeProperty}	 property escapes
let defaults = new RegExp('compiled'); 
defaults = { dotAll: false, flags: "", global: false, ignoreCase: false, falselastIndex: 0, multiline: false, source: "abc", sticky: false, unicode: false}

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: developer.mozilla.org

Tags: expression e

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Contributed on Nov 17 2020

Pink Person

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js regular expression example javascript

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// Using regular expression literal
const regularExp = /abc/;

// Using RegExp() constructor function
const regularExp = new RegExp('abc');

Popularity 9/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: expression e

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Contributed on Dec 14 2022

Bewildered Bird

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regular expression javascript

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console.log(/'\d+'/.test("'123'"));
// → true
console.log(/'\d+'/.test("''"));
// → false
console.log(/'\d*'/.test("'123'"));
// → true
console.log(/'\d*'/.test("''"));
// → true

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Source: eloquentjavascript.net

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Contributed on Aug 31 2022

Ebnul Hassan

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javascript regular expression

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var regularExpression = /^(?=.*[0-9])(?=.*[!@#$%^&*])[a-zA-Z0-9!@#$%^&*]{6,16}$/;

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: stackoverflow.com

Tags: expression e

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Contributed on Oct 14 2022

Shekh Rasel Masrur Ahmmad

0 Answers Avg Quality 2/10

regular expression javascript

Comment

const re = new RegExp("ab+c");

Popularity 9/10 Helpfulness 1/10 Language javascript

Source: developer.mozilla.org

Tags: expression e

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Contributed on Dec 15 2023

MD Mahmud

0 Answers Avg Quality 2/10

how to write regular expression in javascript

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