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

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0

Browser: Firefox 133

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

Slice

21.3M/s

Concat

15.5M/s

Spread

14.4M/s

Splice

10.2M/s

View exact numbers

Test name	Executions per second
✓ Slice	21,264,442 Ops/sec
Concat	15,529,653 Ops/sec
Spread	14,433,925 Ops/sec
Splice	10,188,375 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];