Run results for: clone and splice vs map

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:121.0) Gecko/20100101 Firefox/121.0

Browser: Firefox 121

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
clone and splice	41125.9 Ops/sec
map	38019.8 Ops/sec

Tests:

clone and splice
let a = new Array(1000).fill().map((_,i) => i); let b = [...a]; b.splice(500, 10, ...new Array(10).fill().map((_,i) => i*10));
map
let a = new Array(1000).fill().map((_,i) => i); let b = new Array(10).fill().map((_,i) => i*10) let c = a.map((item, i) => i >= 500 && i < 510 ? b[i - 500] : item)