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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=589259" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0
Browser:
Firefox 115
Operating system:
Windows 8.1
Device Platform:
Desktop
Date tested:
one year ago
Benchmark engine:
Benchmark.js
Array.prototype.slice
5.6M/s
map
5.2M/s
spread operator
4.0M/s
View exact numbers
Test name
Executions per second
✓
Array.prototype.slice
5,589,897 Ops/sec
map
5,190,335 Ops/sec
spread operator
4,028,581 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)