So today’s task was so easy I’m going to do another one because I solved it way too fast. It’s really not that hard if you know some built-in data structures.

Problem

Source

Given an n-length Array of numbers between -1,000,000 to 1,000,000, find the number of distinct values in the array.

Example

A = [1,4,2,6,8,2,3,6] returns 6

My Solution

The idea is to eliminate duplicated numbers from the Array. For this, we use a Set and then get the size of this set which finishes the solution.

const solution = A => new Set(A).size 
Code language: JavaScript (javascript)

And done.

I actually spent more time writing this than thinking about the solution😁.