Rock paper scissors game - codeacademy

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";
}

var compare = function(choice1, choice2) {
    if (choice1 === choice2) {
        return("The result is a tie!");
    }

    if (choice1 === "rock") {
        if (choice2 === "scissors") {
            return("Rock wins.");
        } else {
            return("Paper wins.");
        }
    }

    if (choice1 === "paper") {
        if (choice2 === "rock") {
            return("paper winds.");
        } else {
            return ("Scissors win");
        }
    }

    if (choice1 === "scissors") {
        if (choice2 === "paper") {
            return("Scissors win.");
        } else {
            return ("rock wins");
        }
    }

};

console.log("You chose" + " " + userChoice + ".");
console.log("Computer chose" + " " + computerChoice + ".");
compare(userChoice, computerChoice);