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Run results for:
for vs foreach vs some vs for..of
Compare loop performance
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=599030" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64; rv:137.0) Gecko/20100101 Firefox/137.0
Browser:
Firefox 137
Operating system:
Linux
Device Platform:
Desktop
Date tested:
one year ago
for
2.6M/s
some
1.6M/s
foreach
1.2M/s
for..of
204K/s
View exact numbers
Test name
Executions per second
✓
for
2,569,416 Ops/sec
some
1,618,394 Ops/sec
foreach
1,225,183 Ops/sec
for..of
204,138 Ops/sec
Script Preparation code:
var array = new Array(100);
Tests:
for
for (var i = 0; i < array.length; i++) { array[i]; }
foreach
array.forEach(function(i) { array[i]; });
some
array.some(function(i) { array[i]; });
for..of
for (var i of array) { array[i]; }