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Run results for:
Array.prototype.concat vs spread operator (2 separate arrays of same type)
Compare the ES6 spread operator with the traditional concat() method
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<iframe src="https://measurethat.net/Embed?id=519015" 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/123.0.0.0 Safari/537.36
Browser:
Chrome 123
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
Test name
Executions per second
Array.prototype.concat
13220150.0 Ops/sec
spread operator
25551888.0 Ops/sec
Tests:
Array.prototype.concat
const params = [ {id:1}, {id:2}, {id:3} ]; const initial = [ {id:4}, {id:5}, {id:6} ]; const other = initial.concat(params);
spread operator
const params = [ {id:1}, {id:2}, {id:3} ]; const initial = [ {id:4}, {id:5}, {id:6} ]; const other = [ ...initial, ...params ]