Rock, Paper, Scissors Game.

rockPaperScissors.html

<script>
//The Game
//Each player chooses either rock, paper or scissors
//Rock destroys scissors
//Scissors cut paper
//Paper covers rock

//Phases
//1. User makes a choice
//2. Computer makes a choice
//3. A compare function will determine who wins.

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";}
}
else if (choice1 === "paper"){
if ( choice2 === "rock"){
return "paper wins"}
else (choice2 === "scissors");{
return "scissors wins"}
}
else if (choice1 === "scissors");{
if (choice2 === "rock")
{return "rocks wins"}
else(choice2 === "paper");{
return "scissors wins"}
}
};
console.log(compare(userChoice, computerChoice));
</script>

Useful example of nesting else if statements.