Source code

Revision control

Copy as Markdown

Other Tools

Test Info:

<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script type="text/javascript">
'use strict';
for (let eventType of ["MouseEvent", "KeyboardEvent", "WheelEvent", "FocusEvent"]) {
test(function() {
let before =;
let e = new window[eventType]('test');
let after =;
assert_greater_than_equal(e.timeStamp, before, "Event timestamp should be greater than timestamp taken before its creation");
assert_less_than_equal(e.timeStamp, after, "Event timestamp should be less than timestamp taken after its creation");
}, `Constructed ${eventType} timestamp should be high resolution and have the same time origin as`);