JavaScript String trim() Method

trim()The method removes the spaces at the beginning and end of the string.

Syntax:

string.trim()

Example

var greeting = "         Hello world!         ";
greeting.trim();

The numbers in the table specify the first browser version that fully supports the trim() method:

Method
trim()	Yes	3.5	10.5	5	9

Return Value:	A new string representing the call string with spaces removed from both ends
JavaScript Version:	ECMAScript 1