Given an integer array nums, return the third distinct maximum number in this array. If the third maximum does not exist, return the maximum number. Input: nums = [2,2,3,1] Output: 1
my code:
var thirdMax = function(nums) {
let tempArr =new Set(nums.sort((a,b) => b-a));
let newArr = Array.from(tempArr);
return newArr[2];
};
In console it works, but return undefined. May I ask what I'm missing here? Thank you.
May I ask what I'm missing here?
You are missing this part of the challenge:
If the third maximum does not exist, return the maximum number
Your code is looking for a third entry that might not exist (hence undefined). You'll need to test your code with input that only has 2 or 1 unique value(s), and adapt your code accordingly.
If you can't find how to do that, here is the spoiler:
return newArr[2] ?? newArr[0];
Note that slice expects a numeric argument (not a string). You can just omit that argument.