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Run results for:
for vs foreach vs some vs every vs for..of vs map
Compare loop performance
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=508957" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:124.0) Gecko/20100101 Firefox/124.0
Browser:
Firefox 124
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
2 years ago
Benchmark engine:
Benchmark.js
for
20.1M/s
every
10.2M/s
foreach
10.1M/s
some
10.1M/s
map
7.4M/s
for..of
1.6M/s
View exact numbers
Test name
Executions per second
✓
for
20,051,796 Ops/sec
every
10,173,305 Ops/sec
foreach
10,133,116 Ops/sec
some
10,117,121 Ops/sec
map
7,442,949 Ops/sec
for..of
1,647,701 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]; });
every
array.every(function(i) { array[i]; });
for..of
for (var i of array) { array[i]; }
map
array.map(a => a);