Alternatingly combining array elements in JavaScript

Problem

We are required to write a JavaScript function that takes in any number of arrays of literals as input.

Our function should prepare a new array that contains elements picked alternatingly from all the input arrays.

For example, if the input to the function is −

Input

const arr1 = [1, 2, 3, 4];
const arr2 = [11, 12, 13, 14];
const arr3 = ['a', 'b', 'c'];

Output

const output = [1, 11, 'a', 2, 12, 'b', 3, 13, 'c', 4, 14];

Example

Following is the code −

const arr1 = [1, 2, 3, 4];
const arr2 = [11, 12, 13, 14];
const arr3 = ['a', 'b', 'c'];
const pickElements = (...arrs) => {
   const res = [];
   const max = Math.max(...arrs.map(el => el.length));
   for(let i = 0; i < max; i++){
      for (let j = 0; j < arrs.length; j++){
         if(arrs[j][i]){
            res.push(arrs[j][i]);
         }
      };
   };
   return res;
};
console.log(pickElements(arr1, arr2, arr3));

Output

[ 1, 11, 'a', 2, 12, 'b', 3, 13, 'c', 4, 14 ]