Returning true if JavaScript array contains an element

Question

So far I have this code:

var isMatch = viewedUserLikedUsersArray.indexOf(logged_in_user);
    if (isMatch >=0){
      console.log(\'is match\');
    }
    els         


        

Answer 1

Probably going to get blasted for some reason but hey, why not!

function findMatch(arr, user) {
    var i = 0, count = arr.length, matchFound = false;

    for(; i < count; i++) {
        if (arr[i] === user) {
            matchFound = true;
            break;
        }
    }

    return matchFound;
}

 var isMatch = findMatch(viewedUserLikedUsersArray, logged_in_user); // etc.

An alternative could also be to use includes()

var isMatch = viewedUserLikedUsersArray.includes(logged_in_user); // returns true/false