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Run results for:
Array concat vs spread operator vs push vs prototype.push.apply
Compare the new ES6 spread operator with the traditional concat() method and push
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<iframe src="https://measurethat.net/Embed?id=518141" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4.1 Safari/605.1.15
Browser:
Safari 17
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
spread operator
455.3M/s
Array.prototype.concat
48.6M/s
Push
16.7M/s
Array.prototype.push.apply
9.4M/s
View exact numbers
Test name
Executions per second
✓
spread operator
455,262,048 Ops/sec
Array.prototype.concat
48,588,200 Ops/sec
Push
16,737,648 Ops/sec
Array.prototype.push.apply
9,386,526 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);
Array.prototype.push.apply
var params = [ "hello", true, 7 ]; var other = Array.prototype.push.apply([ 1, 2 ],params);