JavaScript RegExp test() Method
Last Updated :
28 Nov, 2024
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The RegExp test() Method in JavaScript is used to test for match in a string. If there is a match this method returns true else it returns false.
const pattern = /hello/;
const text = "hello world";
console.log(pattern.test(text));
Output
true
Syntax
RegExpObject.test(str)Where str is the string to be searched. This is required field.
Example 1: Searching for the string “computer” in the original string.
let str = "GeeksforGeeks : A computer science portal for geeks.";
let regex = new RegExp("computer",);
let rex = regex.test(str);
console.log(rex);
Output
true
Example 2: Searching for the string “GEEK” in the original string.
let str = "GeeksforGeeks: A computer science portal for geeks.";
let regex = new RegExp("GEEK",);
let rex = regex.test(str);
console.log(rex);
Output
false
Supported Browsers
- Chrome
- Safari
- 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.
