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Run results for:
Array.prototype.push vs spread operator vs flat
Compare the new ES6 spread operator with the traditional concat() method
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<iframe src="https://measurethat.net/Embed?id=570169" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Browser:
Chrome 131
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Benchmark engine:
Benchmark.js
Array.prototype.push
49.7M/s
spread operator
40.6M/s
Array.prototype.flat
5.0M/s
View exact numbers
Test name
Executions per second
✓
Array.prototype.push
49,748,376 Ops/sec
spread operator
40,644,288 Ops/sec
Array.prototype.flat
5,027,807 Ops/sec
Tests:
Array.prototype.push
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ].push(params);
spread operator
var params = [ "hello", true, 7 ] var other = [ 1, 2, ...params ]
Array.prototype.flat
var params = [ "hello", true, 7 ]; var other = [1, 2, params].flat()