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Run results for:
Doing foreach right way vs fancy hyped way
Show how those hyped array functions perform. Use array functions! But only where it should be used.
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=626371" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.4 Safari/605.1.15
Browser:
Safari 18
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
6 months ago
Benchmark engine:
Benchmark.js
forEach - block
1.8M/s
for..of loop
1.7M/s
forEach - return
1.5M/s
map
853K/s
filter
444K/s
View exact numbers
Test name
Executions per second
✓
forEach - block
1,840,150 Ops/sec
for..of loop
1,661,472 Ops/sec
forEach - return
1,511,896 Ops/sec
map
853,134 Ops/sec
filter
444,432 Ops/sec
Script Preparation code:
var arr = new Array(1000).fill(0);
Tests:
for..of loop
let count = 0; for (const item of arr) { count++; }
forEach - block
let count = 0; arr.forEach(() => { count++; });
forEach - return
let count = 0; arr.forEach(() => count++);
map
let count = 0; arr.map(() => count++);
filter
let count = 0; arr.filter(() => count++);