Toggle navigation
MeasureThat
.net
Create a benchmark
Tools
Feedback
Feature Requests
FAQ
Register
Log In
Run results for:
Array concat vs spread operator vs push vs object assign
Compare the new ES6 spread operator with the traditional concat() method and push
Go to the benchmark
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=496441" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:122.0) Gecko/20100101 Firefox/122.0
Browser:
Firefox 122
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
2 years ago
Benchmark engine:
Benchmark.js
Push
30.5M/s
spread operator
28.0M/s
Array.prototype.concat
22.8M/s
Object assign
6.1M/s
View exact numbers
Test name
Executions per second
✓
Push
30,534,590 Ops/sec
spread operator
28,040,130 Ops/sec
Array.prototype.concat
22,788,312 Ops/sec
Object assign
6,108,472 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);
Object assign
var params = [ "hello", true, 7 ]; var other = Object.assign([], params);