Run results for: slice vs splice - Remove items from the beginning of an array

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36

Browser: Chrome 90

Operating system: Linux

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
slice	5.9 Ops/sec
splice	5.3 Ops/sec

Tests:

slice
let data = [...new Array(10000)].map((a,i) => i); for (let i = 0; i < 10000; i++) { let arr = [...data]; arr = arr.slice(-5000); }
splice
let data = [...new Array(10000)].map((a,i) => i); for (let i = 0; i < 10000; i++) { let arr = [...data]; arr.splice(0, arr.length - 5000); }