Run results for: angular.isUndefined vs lodash isUndefined vs typeof === undefined fixed

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

simplify native js

8.3M/s

Native js

4.3M/s

lodash.isUndefined

4.1M/s

angular.isUndefined

4.1M/s

View exact numbers

Test name	Executions per second
✓ simplify native js	8,317,878 Ops/sec
Native js	4,323,741 Ops/sec
lodash.isUndefined	4,147,928 Ops/sec
angular.isUndefined	4,107,910 Ops/sec

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.2/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.6.1/lodash.min.js"></script>

Script Preparation code:

var foo;

Tests:

angular.isUndefined
if (angular.isUndefined(foo)) { foo; }
lodash.isUndefined
if (_.isUndefined(foo)) { foo; }
Native js
if (foo === undefined) { foo; }
simplify native js
if (!foo) { foo; }