modernizr/feature-detects/css/escape.js

Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the user’s browser.

/*!
{
  "name": "CSS.escape()",
  "property": "cssescape",
  "polyfills": ["css-escape"],
  "tags": ["css", "cssom"]
}
!*/
/* DOC
Tests for `CSS.escape()` support.
*/
define(['Modernizr'], function(Modernizr) {
  var CSS = window.CSS;
  Modernizr.addTest('cssescape', CSS ? typeof CSS.escape === 'function' : false);
});