JavaScript RegExp \d Metacharacter
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")
Examples of RegExp \d Metacharacter in JavaScript
Example 1: This example searches the digits in the whole string.
Javascript
function geek() { let str1 = "w3wiki@_123_$" ; let regex4 = /\d/g; let match4 = str1.match(regex4); console.log( "Found " + match4.length + " matches: " + match4); } geek() |
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(); |
Found 3 matches: 1,2,8
Difference between \d and \D
Character Type |
\d Matches |
\D Matches |
---|---|---|
Digits (0-9) |
Yes |
No |
Digits (0-9) |
No |
Yes |
Symbols (@, #, $, etc.) |
No |
Yes |
Whitespace (spaces, tabs, newlines) |
No |
Yes |
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.
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