How to insert a new element in between all elements of a JS array?

Question

I have an array [a, b, c]. I want to be able to insert a value between each elements of this array like that: [0, a, 0, b, 0, c, 0].

I gues

Answer 1

It could be done with strings by splitting and joining.

var arr = ['a', 'b', 'c'];
var newArray = ("0," + arr.toString().split(",").join(",0,")).split(",");
console.log(newArray);