Run results for: Underscore vs Lodash vs vanilla: isNaN

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:136.0) Gecko/20100101 Firefox/136.0

Browser: Firefox 136

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Native JS

472.0M/s

Lodash

468.9M/s

Underscore

1.6M/s

View exact numbers

Test name	Executions per second
✓ Native JS	471,998,368 Ops/sec
Lodash	468,883,936 Ops/sec
Underscore	1,644,466 Ops/sec

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
<script type="text/javascript">
  window.lodash = _;
  _ = null;
</script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js'></script>
<script type="text/javascript">
  window.underscore = _;
  _ = null;
</script>

Script Preparation code:

var a = NaN;
var b = 0;
var c = 3.14;
var d = 1e-10;

Tests:

Underscore
underscore.isNaN(a); underscore.isNaN(b); underscore.isNaN(c); underscore.isNaN(d)
Lodash
lodash.isNaN(a); lodash.isNaN(b); lodash.isNaN(c); lodash.isNaN(d)
Native JS
Number.isNaN(a); Number.isNaN(b); Number.isNaN(c); Number.isNaN(d)

Run results for: Underscore vs Lodash vs vanilla: isNaN

Compare Underscore vs Lodash vs Native JS isNaN. Which is faster?

Underscore

Lodash

Native JS