CSS: escape() static method
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.
The CSS.escape() static method returns a
string containing the escaped string passed as parameter, mostly for
use as part of a CSS selector.
Syntax
js
CSS.escape(str)
Parameters
str-
The string to be escaped.
Return value
The escaped string.
Examples
Basic results
js
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:
js
const element = document.querySelector(`#${CSS.escape(id)} > img`);
The escape() method can also be used for escaping strings, although it
escapes characters that don't strictly need to be escaped:
js
const element = document.querySelector(`a[href="#${CSS.escape(fragment)}"]`);
Specifications
| Specification |
|---|
| CSS Object Model (CSSOM) # the-css.escape()-method |
Browser compatibility
See also
- The
CSSinterface where this static method resides. - A polyfill for the CSS.escape