JavaScript Get N Elements From Array/List

const items = [1, 2, 3, 4, 5]

const last = items[items.length - 1]    // 5

items.slice(items.length - 2) // [1, 2]

const first = items[0]    // 1

const newItems = items.slice(0, 2) // [1, 2]

const start = 1const size = 2items.slice(start, start+size) // [2, 3]