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Array.prototype.concat vs spread oper
(version: 1)
Compare the new ES6 spread operator with the traditional concat() method
Comparing performance of:
Array.prototype.concat vs spread operator
Created:
one year ago
by:
Guest
Go to the latest result
Script Preparation code:
let big = (new Array(1e5)).fill(99);
Tests:
Array.prototype.concat
var other = big.concat(2);
spread operator
var other = [ ...big, 2 ]
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Array.prototype.concat
spread operator
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36
Browser/OS:
Chrome 133 on Windows
View result in a separate tab
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=589878" width="100%" height="500px"></iframe>
Array.prototype.concat
4K/s
spread operator
3K/s
View exact numbers
Test name
Executions per second
✓
Array.prototype.concat
4,059 Ops/sec
spread operator
2,779 Ops/sec
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Array.prototype.concat vs spread operator on small array
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