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typeof vs angular.isDefined() vs _.isUndefined (v10)

Revision 10 of this benchmark created on February 18, 2015

Description

Checking native JS, Angular, and Lodash

Preparation HTML

<script src="//code.angularjs.org/snapshot/angular.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/lodash.js/2.4.1/lodash.min.js"></script>

Setup

var a = 5;

Test runner

Ready to run.

Testing in
Test		Ops/sec
typeof undefined	`typeof a !== 'undefined';`	ready
angular.isDefined	`angular.isDefined(a);`	ready
lodash isUndefined	`_.isUndefined(a);`	ready

Revisions

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

Revision 1: published on July 23, 2013
Revision 2: published on August 16, 2013
Revision 4: published on October 1, 2014
Revision 5: published on October 1, 2014
Revision 6: published on October 22, 2014
Revision 7: published by Joshua Jacobson on December 16, 2014
Revision 8: published by Ross on January 23, 2015
Revision 9: published on February 18, 2015
Revision 10: published on February 18, 2015