Array Prototype Last - Practice Coding | SlaveCode
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2619. Array Prototype Last
Easy
10 Points
Write code that enhances all arrays such that you can call the array.last() method on any array and it will return the last element. If there are no elements in the array, it should return -1.
You may assume the array is the output of JSON.parse.
Examples
Example 1
Input: nums = [null, {}, 3]
Output: 3
Explanation: Calling nums.last() should return the last element: 3.
Example 2
Input: nums = []
Output: -1
Explanation: Because there are no elements, return -1.
Constraints
arr is a valid JSON array
0 <= arr.length <= 1000
2619. Array Prototype Last
Easy
10 Points
Write code that enhances all arrays such that you can call the array.last() method on any array and it will return the last element. If there are no elements in the array, it should return -1.
You may assume the array is the output of JSON.parse.
Examples
Example 1
Input: nums = [null, {}, 3]
Output: 3
Explanation: Calling nums.last() should return the last element: 3.
Example 2
Input: nums = []
Output: -1
Explanation: Because there are no elements, return -1.