javascript solution

function introTutorial(V, arr) { return arr.indexOf(V) }

Here is my solution in java, javascript, python, C, C++, Csharp HackerRank Intro to Tutorial Challenges Solution

Java

public static int introTutorial(int V, List<Integer> arr) {
        return arr.indexOf(V);
    }

here are the solution of Intro to Tutorial ChallengesClick Here

def introTutorial(V, arr): return arr.index(V)