Run results for: lodash.forEach vs forEach vs for loop vs for in vs for of

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:71.0) Gecko/20100101 Firefox/71.0

Browser: Firefox 71

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/lodash/4.16.0/lodash.min.js"></script>

Script Preparation code:

var values = [{a: 30310}, {b: 100303}, {c: 3040494}]

Tests:

lodash.forEach
var count = 0; _.forEach(values, function(v, i) { if (v.a != null) { count++; } })
for loop
var count = 0; for (var i = 0; i < values.length; i++) { if (values[i].a != null) { count++; } }
for of
var count = 0; for (const v of values) { if (v.a != null) { count++; } }
for in
var count = 0; for (const v in values) { if (v.a != null) { count++; } }
forEach native
var count = 0; values.forEach(function(v, i) { if (v.a != null) { count++; } })