String.prototype.trimLeft()

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.

Summary

The trimLeft() removes whitespace from the left end of the 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

Example: 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

None. 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) ? ? ?
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? ? (Yes) ? ? ?

See also

Document Tags and Contributors

Contributors to this page: evilpie, Sheppy, fscholz, ziyunfei, Midnightaz, ethertank, rvighne, Potappo
Last updated by: rvighne,
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