Run results for: `Array.slice(0, N)` vs `Array.length = N`

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; SAMSUNG SM-N960W) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/18.0 Chrome/99.0.4844.88 Mobile Safari/537.36

Browser: Chrome Mobile 99

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
`Array.slice(0, N)`	3876853.8 Ops/sec
`Array.length = N`	3274447.8 Ops/sec
`Object.assign([], arr)` with `Array.length = N`	104289.1 Ops/sec

Script Preparation code:

var arr = Array.from(Array(100).keys());

Tests:

`Array.slice(0, N)`
arr.slice(0, 20);
`Array.length = N`
arr.length = 20;
`Object.assign([], arr)` with `Array.length = N`
var newArr = Object.assign([], arr); newArr.length = 20;

Run results for: `Array.slice(0, N)` vs `Array.length = N`

`Array.slice(0, N)`

`Array.length = N`

`Object.assign([], arr)` with `Array.length = N`