<!DOCTYPE html> <html> <head> <meta charset="UTF-8" /> <title>window.performance User Timing exists</title> <link rel="author" title="Microsoft" href="http://www.microsoft.com/" /> <link rel="help" href="http://www.w3.org/TR/user-timing/"/> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script src="resources/webperftestharness.js"></script> </head> <body> <h1>Description</h1> <p>This test validates that all of the methods used to interact with the User Timing API are defined.</p> <div id="log"></div> <script> test_namespace(); test_true(window.performance.mark !== undefined, "window.performance.mark is defined."); test_true(window.performance.clearMarks !== undefined, "window.performance.clearMarks is defined."); test_true(window.performance.measure !== undefined, "window.performance.measure is defined."); test_true(window.performance.clearMeasures !== undefined, "window.performance.clearMeasures is defined."); </script> </body> </html>