Run results for: JavaScript .sort() vs .toSorted ()vs [...].sort()

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36

Browser: Chrome 138

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Array.toSorted()

1.8M/s

[...Array].sort()

1.7M/s

Array.sort()

1.7M/s

View exact numbers

Test name	Executions per second
✓ Array.toSorted()	1,759,092 Ops/sec
[...Array].sort()	1,661,394 Ops/sec
Array.sort()	1,657,922 Ops/sec

Script Preparation code:

array = Array.from({
    length: 50
}, (x, i) => (Math.round(Math.random() * (i + .01) * 1000)))

sortNumeric = (a, b) => (Number(a) - Number(b));

Tests:

Array.sort()
array.sort(sortNumeric);
Array.toSorted()
array.toSorted(sortNumeric)
[...Array].sort()
[...array].sort(sortNumeric);

Run results for: JavaScript .sort() vs .toSorted ()vs [...].sort()

Compare Javascript sort performance

Array.sort()

Array.toSorted()

[...Array].sort()