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

Another way is to use some functional methods like zip and flat. Check out lodash.

const array = ['a', 'b', 'c']
const zeros = Array(array.length + 1).fill(0)
const result = _.zip(zeros, array).flat().filter(x => x !== undefined)
console.log(result)