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Cached firstChild check

Benchmark created by T.J. Crowder on October 23, 2014

Preparation HTML

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Test runner

Ready to run.

Testing in
Test		Ops/sec
Cache it - from front	`var child; var div = document.getElementById("foo"); while (child = div.firstChild) { div.removeChild(child); }`	ready
Don't cache - from front	`var div = document.getElementById("foo"); while (div.firstChild) { div.removeChild(div.firstChild); }`	ready
Cache it - from end	`var child; var div = document.getElementById("foo"); while (child = div.lastChild) { div.removeChild(child); }`	ready
Don't cache - from end	`var div = document.getElementById("foo"); while (div.lastChild) { div.removeChild(div.lastChild); }`	ready
Cache use sibling	`var child; var div = document.getElementById("foo"); for (child = div.firstChild; child; child = child.nextSibling) { div.removeChild(child); }`	ready
Set innerHTML	`document.getElementById("foo").innerHTML = "";`	ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

Revision 1: published by T.J. Crowder on October 23, 2014