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Run results for:
Array.prototype.slice vs spread operator vs map
Compare the new ES6 spread operator with the traditional slice() method and map() method
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<iframe src="https://measurethat.net/Embed?id=500084" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
Browser:
Chrome 120
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
Benchmark engine:
Benchmark.js
Array.prototype.slice
105.5M/s
spread operator
77.7M/s
map
70.8M/s
View exact numbers
Test name
Executions per second
✓
Array.prototype.slice
105,520,792 Ops/sec
spread operator
77,743,512 Ops/sec
map
70,814,600 Ops/sec
Tests:
Array.prototype.slice
var params = [ "hello", true, 7 ]; var other = params.slice();
spread operator
var params = [ "hello", true, 7 ] var other = [ ...params ]
map
var params = [ "hello", true, 7 ] var other = params.map(i => i)