coderef

CSS.escape()Baseline · Widely available

The CSS.escape() static method escapes a string so that it can be used in a valid CSS selector.

Supported in all major browsers for at least 30 months — safe to use without fallbacks. Baseline since Jan 15, 2020. Widely available since Jul 15, 2022.

How to use ↓Compare browsers

Browser support

DesktopChrome
1–45Not supported
46+Supportedsince Oct 13, 2015
Current: 155
Edge
12–18Not supported
79+Supportedsince Jan 15, 2020
Current: 154
Firefox
1–30Not supported
31+Supportedsince Jul 22, 2014
Current: 157
Safari
1–10Not supported
10.1+Supportedsince Mar 27, 2017
Current: 27
MobileChrome Android
18–45Not supported
46+Supportedsince Oct 14, 2015
Current: 155
Firefox Android
4–30Not supported
31+Supportedsince Jul 22, 2014
Current: 157
Safari iOS
1–10Not supported
10.3+Supportedsince Mar 27, 2017
Current: 27

How to use

This feature is Baseline widely available — use it freely, no fallback needed.

Example

Full syntax and examples are on MDN: escape static.

Feature detection

JS · check before using
if ("CSS" in globalThis && "escape" in CSS) {
  // CSS.escape is available
}

Documentation (MDN)

Specification