Merge two arrays with alternating Values

Question

i would like to merge 2 arrays with a different length:

let array2 = [\"a\", \"b\", \"c\", \"d\"];
let array2 = [1, 2];

let outcome = [\"a\",1 ,\"b\", 2, \"         


        

Answer 1

This can be done rather simply using a splicing function within reduce:

function splicer(array, element, index) {
    array.splice(index * 2, 0, element);
    return array;
}

function weave(array1, array2) {
    return array1.reduce(splicer, array2.slice());
}

let array1 = ["a", "b", "c", "d"];
let array2 = [1, 2];

let outcome = weave(array1, array2);

console.log(outcome);