JavaScript RegExp [^0-9] Expression

Last Updated : 28 Nov, 2024

The RegExp [^0-9] Expression in JavaScript is used to search any digit which is not between the brackets. The character inside the brackets can be a single digit or a span of digits.

Example: Finding non-digit characters from given string

JavaScript

const regex = /[^0-9]/g;
const str = "Hello123Geeks";

const result = str.match(regex);
console.log(result);

Output

[
  'H', 'e', 'l', 'l',
  'o', 'G', 'e', 'e',
  'k', 's'
]

Syntax

/[^0-9]/ 
// or
new RegExp("[^0-9]")

Syntax with modifiers

/[^0-9]/g 
// or
new RegExp("[^0-9]", "g")

Example 1: Searching the digits which are not present between [0-4] in the given string.

JavaScript

let str = "123456790";
let regex = /[^0-4]/g;
let match = str.match(regex);

console.log("Found " + match.length
    + " matches: " + match);

Output

Found 4 matches: 5,6,7,9

Example 2: Searching the digits which are not present between [0-9] in the given string and replaces the characters with hash(#).

JavaScript

let str = "128@$%";
let replacement = "#";
let regex = new RegExp("[^0-9]", "g");
let match = str.replace(regex, replacement);

console.log("Found " + match.length
    + " matches: " + match);

Output

Found 6 matches: 128###

Supported Browsers

Chrome
Edge
Safari
Firefox
Opera

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.

JavaScript RegExp . Metacharacter

Vishal Chaudhary 2

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Article Tags :

JavaScript RegExp [^0-9] Expression

Syntax

Supported Browsers

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