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Run results for:
Array loop vs foreach vs map vs filter vs reduce
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=590801" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36 Edg/133.0.0.0
Browser:
Chrome 133
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
foreach
827662.6 Ops/sec
for
186634.4 Ops/sec
map
120376.3 Ops/sec
filter
115876.8 Ops/sec
reduce
394103.1 Ops/sec
Script Preparation code:
var arr = []; for (var i = 0; i < 1000; i++) { arr[i] = i; } function someFn(i) { return i * 3 * 8; }
Tests:
foreach
arr.forEach(function (item){ someFn(item); })
for
for (var i = 0, len = arr.length; i < len; i++) { someFn(arr[i]); }
map
arr.map(item => someFn(item))
filter
arr.filter(item => someFn(item))
reduce
arr.reduce(item => someFn(item))