LeetCode #2 Add Two Numbers

You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a linked list.

Input: (2 -> 4 -> 3) + (5 -> 6 -> 4)
Output: 7 -> 0 -> 8

 

var addTwoNumbers = function(l1, l2) {
        var a=parseInt(l1.toString().split("").reverse().join(""));
        var b=parseInt(l2.toString().split("").reverse().join(""));
        var c=a+b;
        var d=c.toString().split("").reverse()
        return d;
    };
    console.log(addTwoNumbers(123,456));