Benchmark: lodash forEach vs for i loop with length cached vs Array#forEach vs Array#map (big array 1e4)

HTML Preparation code:

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

Script Preparation code:

var values = Array.from({length: 1e4}).map((v, i) => ({ [String.fromCharCode(Math.random() * 26 + 97)]: Math.random(10000) }))

Tests:

lodash.forEach
var count = 0; _.forEach(values, function(v,i) { if (v.a != null) { count++; } })
native
var count = 0; for (var i = 0, len = values.length; i < len; i++) { if (values[i].a != null) { count++; } }
Array#forEach
var count = 0; values.forEach(function(v,i) { if (v.a != null) { count++; } })
Array#map
var count = 0; values.map(function(v,i) { if (v.a != null) { count++; } })

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3895.5 Safari/537.36

Browser/OS: Chrome 78 on Windows

lodash forEach vs for i loop with length cached vs Array#forEach vs Array#map (big array 1e4) (version: 0)