add iterms inbetween other array items code example
Example: js array add every element of array
var array = ['a', 'b', 'c'],
result = array.reduce((r, a) => r.concat(a, 0), [0]);
console.log(result);
var array = ['a', 'b', 'c'],
result = array.reduce((r, a) => r.concat(a, 0), [0]);
console.log(result);