// generate array 1 - 10
const nums = [...Array.from(10).keys()].map(x => ++x)
// [1, 2, 3, 4,  5, 6, 7, 8, 9, 10]

// dimulai dari 0
const nums = [...Array.from(10).keys()]
// [0, 1, 2, 3, 4,  5, 6, 7, 8, 9]