The RegExp ^m Quantifier in JavaScript is used to find the match of any string which contains m at the beginning of it.
Syntax:
/^m/
or
new RegExp("^m")
Syntax with modifiers:
/\^m/g
or
new RegExp("^m", "g")
Example 1: This example matches the presence of word ‘Geeks’ at the beginning of the string.
Javascript
function geek() { let str1 = "Geeksfor123\nGeeks@"; let regex4 = /^Geeks/gim; let match4 = str1.match(regex4); console.log("Found " + match4.length + " matches: " + match4);}geek(); |
Output
Found 2 matches: Geeks,Geeks
Example 2: This example replaces the character ‘@’ with ‘#’.
Javascript
function geek() { let str1 = "@128Geek"; let regex4 = new RegExp("^@", "gi"); let replace = "#"; let match4 = str1.replace(regex4, replace); console.log(" New string: " + match4);}geek(); |
Output
New string: #128Geek
Supported Browsers: The browsers supported by RegExp ^ Quantifier are listed below:
- Google Chrome
- Apple Safari
- Mozilla Firefox
- Opera
- Edge
We have a complete list of Javascript RegExp expressions, to check those please go through this JavaScript RegExp Complete Reference article.
We have a Cheat Sheet on Javascript where we covered all the important topics of Javascript to check those please go through Javascript Cheat Sheet-A Basic guide to JavaScript.
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