JavaScript String trim()

Remove spaces with trim():

let text = " Hello World! ";
let result = text.trim();

Remove spaces with replace() using a regular expression:

let text = " Hello World! ";
let result = text.replace(/^\s+|\s+$/gm,'');

Description

The trim() method removes whitespace from both sides of a string.

The trim() method does not change the original string.

string.trim()

NONE

Type	Description
A string	A string with removed whitespace from both ends.

trim() is an ECMAScript5 (ES5) feature.

ES5 (JavaScript 2009) fully supported in all modern browsers since July 2013:


Chrome 23	IE/Edge 10	Firefox 21	Safari 6	Opera 15
Sep 2012	Sep 2012	Apr 2013	Jul 2012	Jul 2013