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Run results for:
Array concat vs spread operator vs push
Compare the new ES6 spread operator with the traditional concat() method and push
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<iframe src="https://measurethat.net/Embed?id=577653" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 18_2_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/131.0.6778.154 Mobile/15E148 Safari/604.1
Browser:
Chrome Mobile iOS 131
Operating system:
iOS 18.2.0
Device Platform:
Mobile
Date tested:
one year ago
spread operator
474.6M/s
Array.prototype.concat
42.1M/s
Push
14.7M/s
View exact numbers
Test name
Executions per second
✓
spread operator
474,592,704 Ops/sec
Array.prototype.concat
42,107,288 Ops/sec
Push
14,689,856 Ops/sec
Tests:
Array.prototype.concat
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ].concat(params);
spread operator
var params = [ "hello", true, 7 ] var other = [ 1, 2, ...params ]
Push
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ].push(...params);