var userChoice = prompt("Do you choose rock,paper or scissor?");
var computerChoice = Math.random();
console.log(computerChoice);
if(computerChoice >=0 && computerChoice <=0.33) {
    console.log("rock");
}
else if(computerChoice>=0.34 && computerChoice <=0.66) {
    console.log("paper");
}
else {
    console.log("scissor");
}