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Run results for:
Array loop vs foreach (static & index)
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Embed Benchmark Result
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0
Browser:
Firefox 133
Operating system:
Linux
Device Platform:
Desktop
Date tested:
one year ago
Benchmark engine:
Benchmark.js
for_static
1.2M/s
for_index
612K/s
foreach_static
121K/s
foreach_index
120K/s
View exact numbers
Test name
Executions per second
✓
for_static
1,188,783 Ops/sec
for_index
612,025 Ops/sec
foreach_static
121,221 Ops/sec
foreach_index
120,197 Ops/sec
Script Preparation code:
var arr = []; for (var i = 0; i < 1000; i++) { arr[i] = i; } function someFn(i) { return i * 3 * 8; }
Tests:
foreach_static
arr.forEach(function (item){ someFn(3); })
for_static
for (var i = 0, len = arr.length; i < len; i++) { someFn(3); }
foreach_index
arr.forEach(function (item){ someFn(item); })
for_index
for (var i = 0, len = arr.length; i < len; i++) { someFn(arr[i]); }