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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=577182" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 16_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.6 Mobile/15E148 Safari/604.1
Browser:
Mobile Safari 16
Operating system:
iOS 16.6
Device Platform:
Mobile
Date tested:
one year ago
spread operator
367.8M/s
Array.prototype.concat
27.2M/s
Push
10.3M/s
View exact numbers
Test name
Executions per second
✓
spread operator
367,773,536 Ops/sec
Array.prototype.concat
27,185,910 Ops/sec
Push
10,298,504 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);