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Run results for:
Array concat vs spread operator vs push for single values
Compare the new ES6 spread operator with the traditional concat() method and push for single values
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<iframe src="https://measurethat.net/Embed?id=624668" 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/138.0.0.0 Safari/537.36
Browser:
Chrome 138
Operating system:
Windows
Device Platform:
Desktop
Date tested:
3 months ago
Test name
Executions per second
Array.prototype.concat
9101756.0 Ops/sec
spread operator
46969416.0 Ops/sec
Push
61320372.0 Ops/sec
Script Preparation code:
var value = 7; var arr = [1, 2];
Tests:
Array.prototype.concat
const other = arr.concat(value);
spread operator
const other = [ ...arr, value ];
Push
const other = [ 1, 2 ].push(value);