Limited Availability Strings

String trimLeft() and trimRight()

The trimLeft() and trimRight() methods of strings return a new string with whitespace removed from the beginning or end of the string. They're aliases for trimStart() and trimEnd().

Baseline Status: This feature is currently Limited (not yet Baseline). Latest engine implementation shipped on Jul 29, 2015.

Desktop Browser Engine Support

Google Chrome

4

Supported

Mozilla Firefox

3.5

Supported

Apple Safari

5

Supported

Microsoft Edge

12

Supported

Mobile Browser Engine Support

Chrome Android

18

Firefox Android

4

Safari iOS

4.2

Specifications and References

Specification ↗ Feature XML ↗

MDN Browser Compat Data Keys:

javascript.builtins.String.trimLeft ↗ javascript.builtins.String.trimRight ↗