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Run results for:
for vs foreach vs for...in vs for...of
Compare loop performance
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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
81979.5 Ops/sec
foreach
5131105.5 Ops/sec
for in
3652042.5 Ops/sec
for..of
10790910.0 Ops/sec
Script Preparation code:
var array = new Array(100);
Tests:
for
var len = array.length; for (var i = 0; i < array.length; i++) { array[i]; }
foreach
array.forEach(function(el) { el; });
for in
for (var i in array) { array[i]; }
for..of
for (var el of array) { el; }