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Run results for:
for vs foreach vs for..in vs for..of zzz3
Compare loop performance
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=540156" 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/127.0.0.0 Safari/537.36
Browser:
Chrome 127
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
for
111.8 Ops/sec
foreach
2601.6 Ops/sec
for in
219.6 Ops/sec
for..of
12949.4 Ops/sec
Script Preparation code:
var array = new Array(100000); for (let i = 0; i < 100000; ++i) { array[i] = i; }
Tests:
for
let s = 0; for (var i = 0; i < array.length; i++) { s+=array[i]; }
foreach
let s = 0; array.forEach(function(n) { s+=n; });
for in
let s = 0; for (const n in array) { s+=n; }
for..of
let s = 0; for (const n of array) { s+=n; }