Run results for: spread array performance (vs slice, splice, concat) - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0

Browser: Firefox 142

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Slice

21.4M/s

Concat

15.2M/s

Spread

10.4M/s

Splice

9.7M/s

View exact numbers

Test name	Executions per second
✓ Slice	21,371,486 Ops/sec
Concat	15,229,777 Ops/sec
Spread	10,443,658 Ops/sec
Splice	9,741,041 Ops/sec

Tests:

Splice
const testArray = [1, 2, 3]; const newTestArray = testArray.splice(0);
Slice
const testArray = [1, 2, 3]; const newTestArray = testArray.slice();
Concat
const testArray = [1, 2, 3]; const newTestArray = testArray.concat();
Spread
const testArray = [1, 2, 3]; const newTestArray = [...testArray];