Javascript notes
2019, Oct 31
Create an array containing 1…N
const n = 10
let a = Array.from(Array(n).keys());
console.log(a);
// [0,1,2,3,4,5,6,7,8,9]
// or shorter version using spread operator
a = [...Array(10).keys()];
console.log(a);
// [0,1,2,3,4,5,6,7,8,9]