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JavaScript RegExp \d Metacharacter

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The RegExp \d Metacharacter in JavaScript is used to search digit characters. It is the same as [0-9]. 

Syntax: 

/\d/ 

or

new RegExp("\\d")

Syntax with modifiers:

/\d/g 

or

new RegExp("\\d", "g")

Example 1: This example searches the digits in the whole string. 

Javascript

function geek() {
    let str1 = "GeeksforGeeks@_123_$";
    let regex4 = /\d/g;
    let match4 = str1.match(regex4);
 
    console.log("Found " + match4.length
        + " matches: " + match4);
}
geek()

                    

Output
Found 3 matches: 1,2,3

Example 2: This example searches the digits in the whole string. 

Javascript

function geek() {
    let str1 = "Geeky@128";
    let regex4 = new RegExp("\\d", "g");
    let match4 = str1.match(regex4);
 
    console.log("Found " + match4.length
        + " matches: " + match4);
}
geek();

                    

Output
Found 3 matches: 1,2,8

Supported Browsers: The browsers supported by RegExp \d Metacharacter 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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