Slice and assign vs splice in place vs set length

Benchmark created on

Description

Compare removing trailing array elements with assigning the variable to the slice of the old one without the trailing elements, vs mutating the array in place by removing the trailing elements from it, vs changing the array length to a smaller value

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Testing in
TestOps/sec
.slice(0, -n)
let list = Array.from({ length: 10_000 }, Math.random)

list = list.slice(0, -500)
ready
.splice(L - n, n)
const list = Array.from({ length: 10_000 }, Math.random)

list.splice(list.length - 500, 500)
ready
.length -= n
const list = Array.from({ length: 10_000 }, Math.random)

list.length -= 500
ready

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