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

if ((computerChoice > 0) and (computerChoice <0.33))
{
 return (computerChoice === "rock");
}
else if ((computerChoice >= 0.34) and (computerchoice <=0.66))
{
    return (computerChoice === "paper");
}
else
{
    return (computerChoice === "scissors");
}