cssstyledeclaration-properties.html (875B)
1 <!doctype html> 2 <title>CSS Test: CSSStyleDeclaration properties are defined as WebIDL attributes, not using getOwnPropertyNames()</title> 3 <link rel="author" href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez"> 4 <link rel="author" href="https://mozilla.org" title="Mozilla"> 5 <link rel="help" href="https://drafts.csswg.org/cssom/#dom-cssstyledeclaration-_camel_cased_attribute"> 6 <script src="/resources/testharness.js"></script> 7 <script src="/resources/testharnessreport.js"></script> 8 <script> 9 test(function() { 10 let declaration = document.documentElement.style; 11 assert_true(declaration instanceof CSSStyleDeclaration, "Should be a CSStyleDeclaration"); 12 assert_true("color" in declaration, "Should support the color property"); 13 assert_false(declaration.hasOwnProperty("color"), "shouldn't have an own property for WebIDL attributes"); 14 }); 15 </script>