Switch Case Error

// OK, so this was supposed to be an Array.indexOf(indexID) that I made after reading about the method on  https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Array/indexOf
// Supposed to return either -1 or the found value
// I dumbed it down to debug it, but it still does not work! I only get the  Default triggered.

socket.on("message", function (data) {

var new_data = data.split(',');

switch(new_data[0]){

case "username":

    var indexID = 1;
    switch(indexID){


        case indexID == 1:


            clientID.username = new_data[1];

            // Push players Array new Username
            players.push(clientID.username);

            // emit message telling the user his new name!
            socket.emit("message", "test," + clientID.username);
        break;

        case indexID !== 1:


                requestusername("taken");
        break;

        // Sends a Error message if nothing else triggered:
        default:
            socket.emit("message", "error," + clientID.username);
    };