Mapping Array in Javascript with sequential numbers

Question

The following code:

let myArray = Array.apply(null, {length: 10}).map(Number.call, Number);

Creates the following Array:

[0, 1,         


        

Answer 1

es6 simpliedfied version

let k = Array.from({ length: 5 }).map((currentElement, i) => i)

console.log(k)

// Output -[0, 1, 2, 3, 4]