Web/API/CSS/escape

This is an experimental technologyCheck the Browser compatibility table carefully before using this in production.

The CSS.escape() static method returns a CSSOMString containing the escaped string passed as parameter, mostly for use as part of a CSS selector.

Syntax

escapedStr = CSS.escape(str);

Parameters

str: The CSSOMString to be escaped.

Examples

Basic results

CSS.escape(".foo#bar")        // "\.foo\#bar"
CSS.escape("()[]{}")          // "\(\)\[\]\{\}"
CSS.escape('--a')             // "--a"
CSS.escape(0)                 // "\30 ", the Unicode code point of '0' is 30
CSS.escape('\0')              // "\ufffd", the Unicode REPLACEMENT CHARACTER

In context uses

To escape a string for use as part of a selector, the escape() method can be used:

var element = document.querySelector('#' + CSS.escape(id) + ' > img');

The escape() method can also be used for escaping strings, although it escapes characters that don't strictly need to be escaped:

var element = document.querySelector('a[href="#' + CSS.escape(fragment) + '"]');

Specification

Specification	Status	Comment
CSS Object Model (CSSOM)The definition of 'CSS.escape()' in that specification.	Working Draft	Initial definition

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`escape` Experimental'	Chrome Full support 46	Edge Full support 79	Firefox Full support 31	IE No support No	Opera Full support 33	Safari Full support 10	WebView Android Full support 46	Chrome Android Full support 46	Firefox Android Full support 31	Opera Android Full support 33	Safari iOS Full support 10	Samsung Internet Android Full support 5.0

Legend

Full support: Full support
No support: No support
Experimental. Expect behavior to change in the future.': Experimental. Expect behavior to change in the future.