Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

The trimLeft() method removes whitespace from the left end of a string.

Syntax

str.trimLeft()

Description

The trimLeft() method returns the string stripped of whitespace from its left end. trimLeft() does not affect the value of the string itself.

Examples

Using trimLeft()

The following example displays the lowercase string 'foo ':

var str = '   foo  ';

console.log(str.length); // 8

str = str.trimLeft();
console.log(str.length); // 5
console.log(str);        // 'foo  '

Specifications

Not part of any standard. Implemented in JavaScript 1.8.1.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) 3.5 (1.9.1) No support ? ?
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? ? (Yes) ? ? ?

See also

Document Tags and Contributors

 Last updated by: pstricker,