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Run results for:
Array loop vs foreach vs map with large array
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:148.0) Gecko/20100101 Firefox/148.0
Browser:
Firefox 148
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
5 months ago
for
2K/s
foreach
288/s
map
178/s
View exact numbers
Test name
Executions per second
✓
for
1,756 Ops/sec
foreach
288 Ops/sec
map
178 Ops/sec
Script Preparation code:
var arr = []; for (var i = 0; i < 1000000; i++) { arr[i] = i; } function someFn(i) { return i * 3 * 8; }
Tests:
foreach
arr.forEach(someFn)
for
for (var i = 0, len = arr.length; i < len; i++) { someFn(arr[i]); }
map
arr.map(someFn)