ziplist.js

/**
 * Created by joshu on 2/6/2017.
 */

const testList1 = ['a', 'b', 'c'];
const testList2 = [1, 2, 3];

function zipList(list1, list2)
{
  const resultList = [];
  for(let i = 0; i < list1.length; i++)
  {
    resultList.push(list1[i], list2[i]);
  }
  return resultList;
}

console.log(zipList(testList1, testList2));

function zipListTheSimpleWay(list1, list2)
{
  return _.flatten(_.zip(list1, list2));
}

console.log(zipListTheSimpleWay(testList1, testList2));