Benchmark: personal spread array performance (vs slice, splice, concat)

Tests:

Splice
const testArray = Array(20000).fill().map((_, idx) => idx); const newTestArray = testArray.splice(0);
Slice
const testArray = Array(20000).fill().map((_, idx) => idx); const newTestArray = testArray.slice();
Concat
const testArray = Array(20000).fill().map((_, idx) => idx); const newTestArray = testArray.concat();
Spread
const testArray = Array(20000).fill().map((_, idx) => idx); const newTestArray = [...testArray];

Rendered benchmark preparation results:

Previous results

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Mobile Safari/537.36

Browser/OS: Chrome Mobile 131 on Android

Spread

5K/s

Splice

3K/s

Slice

3K/s

Concat

3K/s

View exact numbers

personal spread array performance (vs slice, splice, concat) (version: 0) Benchmark.js