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Run results for:
Array concat vs spread vs push spread
Compare the new ES6 spread operator with the traditional concat() method and push
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<iframe src="https://measurethat.net/Embed?id=563729" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Browser:
Chrome 130
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Array.prototype.concat
13.6M/s
Push Spread
13.6M/s
View exact numbers
Test name
Executions per second
✓
Array.prototype.concat
13,640,891 Ops/sec
Push Spread
13,566,876 Ops/sec
Script Preparation code:
var subarrs = [ [ {"name": "hello", "isGood": true}, {"name": "hello", "isGood": false}, {"name": "hello2", "isGood": true}, ], ];
Tests:
Array.prototype.concat
var other = [ {"name": "hello 3", "isGood": true} ] subarrs.concat(other)
Push Spread
var other = [ {"name": "hello 3", "isGood": true} ] subarrs.push(...other)