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    String.trim Redirect 1

    Summary

    The trim() method removes whitespace from both ends of the string.

    Syntax

    str.trim()

    Description

    The trim method returns the string stripped of whitespace from both ends. trim does not affect the value of the string itself.

    Examples

    Example: Using trim

    The following example displays the lowercase string "foo":

    var orig = "   foo  ";
    
    console.log( orig.trim() ); // "foo"

    Polyfill

    Running the following code before any other code will create String.trim if it's not natively available.

    if (!String.prototype.trim) {
      String.prototype.trim = function () {
        return this.replace(/^\s+|\s+$/g, '');
      };
    }

    Specifications

    Specification Status Comment
    ECMAScript Language Specification 5.1th Edition (ECMA-262) Standard Initial definition.
    Implemented in JavaScript 1.8.1
    ECMAScript Language Specification 6th Edition (ECMA-262) Draft  

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support (Yes) 3.5 (1.9.1) 9 10.5 5
    Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support (Yes) (Yes) (Yes) (Yes) (Yes) (Yes)

    See also

    Document Tags and Contributors

    Contributors to this page: Sheppy
    Last updated by: Sheppy,
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