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Run results for:
for vs foreach vs for..of vs for..of over large entries
Compare loop performance
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=581162" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0
Browser:
Firefox 134
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
for
79K/s
foreach
17K/s
for..of
16K/s
for..of over entries
8K/s
View exact numbers
Test name
Executions per second
✓
for
78,753 Ops/sec
foreach
17,307 Ops/sec
for..of
15,883 Ops/sec
for..of over entries
8,068 Ops/sec
Script Preparation code:
var array = Array.from({length: 10000}); var t;
Tests:
for
for (let i = 0; i < array.length; i++) { t = array[i]; }
foreach
array.forEach(function(v, i) { t = v; });
for..of
for (var v of array) { t = v; }
for..of over entries
for (var [i, v] of array.entries()) { t = v; }