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

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.164 Safari/537.36

Browser/OS: Chrome 91 on Mac OS X 10.15.7

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