JSFiddle - React, Tailwind, and code Playground

by Kristian Jabilles

JavaScript

function solution(A) {
	
	A.sort().reduce((accumulator, currentValue) => {
  	console.log(accumulator, currentValue)
    if(accumulator !== currentValue) {
    	return currentValue;
    }
  })
}

console.log(solution([9,3,9,3,9,7,9]));