Run results for: Slice vs Splice vs Shift

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.5112.114 YaBrowser/22.9.1.1081 Yowser/2.5 Safari/537.36

Browser: Yandex Browser 22

Operating system: Mac OS X 10.13.6

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
array.slice()	3772767.0 Ops/sec
array.splice()	4854932.0 Ops/sec
array.shift()	2220414.0 Ops/sec

Script Preparation code:

var array = [1, 2, 3, 4, 5, 6, 7, 8]
var itemsToRemove = 2

Tests:

array.slice()
array = array.slice(2)
array.splice()
array.splice(0, itemsToRemove)
array.shift()
for (let i = 0 ; i < itemsToRemove ; i++) array.shift()

Run results for: Slice vs Splice vs Shift

Compares the speed for removing 2 items from the beginning of an array

array.slice()

array.splice()

array.shift()