JavaScript RegExp [0-9] Expression
The RegExp [0-9] Expression in JavaScript is used to search any digit which is between the brackets. The character inside the brackets can be a single digit or a span of digits.
Syntax:
/[0-9]/
or
new RegExp("[0-9]")
Syntax with modifiers:
/[0-9]/g
or
new RegExp("[0-9]", "g")
Example 1: This example searches the digits between [0-4] in the whole string.
Javascript
function geek() {
let str1 = "123456790" ;
let regex4 = /[0-4]/g;
let match4 = str1.match(regex4);
console.log( "Found " + match4.length
+ " matches: " + match4);
}
geek()
|
Output
Found 5 matches: 1,2,3,4,0
Example 2: This example searches the digits between [0-9] in the whole string and replaces the characters with hash(#).
Javascript
function geek() {
let str1 = "128@$%" ;
let replacement = "#" ;
let regex4 = new RegExp( "[0-9]" , "g" );
let match4 = str1.replace(regex4, replacement);
console.log( " New string: " + match4);
}
geek()
|
Output
New string: ###@$%
Supported Browsers: The browsers supported by RegExp [0-9] Expression are listed below.
- Google Chrome
- Apple Safari
- Mozilla Firefox
- Opera
- Internet Explorer
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.
Last Updated :
30 May, 2023
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