Rock, Paper Scissors

var userChoice = prompt("Do you choose rock, paper or scissors?");
var computerChoice = Math.random();

if (computerChoice < 0.34)
{
    computerChoice = "rock";
} else if (computerChoice <= 0.67)
{
    computerChoice = "paper";
} else
{
    computerChoice = "scissors";
}

console.log("Computer: " + computerChoice);

var compare = function(choice1, choice2)
{
    if(choice1 === choice2)
    {
        return "The result is a tie";
    } else if (choice1 === "rock")
    {
        if (choice2 === "scissors")
        {
            return "rock wins";
        } else
        {
            return "paper wins";
        }
    }