the :rock, paper scissors" project
Hey everybody,
I need help with my project, i’m kinda frasturated and the walk through video didn’t help me.
I really checked everything and can’t find the bugs.
The problem is when I need to test my code at number 11 task, for example I write console.log(determineWinner(paper, scissors)); ,I recieve that message - "ReferanceError: computerChoice is not defined at determineWinner "
I’ll paste my work here, can someone find my bug? 
const getUserChoice = userInput => {
userInput = userInput.toLowerCase();
if (userInput === 'rock' || userInput === 'paper' || userInput === 'scissors') {
return userInput;
} else {
console.log('error!');
}
};
const getComputerChoice = () => {
const randomNumber = Math.floor(Math.random() * 3);
switch (randomNumber) {
case 0:
return 'rock';
case 1:
return 'paper';
case 2:
return 'scissors';
};
}
const determineWinner = (userChoice, ComputerChoice) => {
if (userChoice === computerChoice) {
return 'a tie!'
};
if (userChoice === 'rock') {
if (computerChoice === 'paper') {
return 'The computer won!';
} else {
return 'You won!';
}
};
if (userChoice === 'paper') {
if (computerChoice === 'scissors') {
return 'The computer won!';
} else {
return 'You won!';
}
};
if (userChoice === 'scissors') {
if (computerChoice === 'rock') {
return 'The computer won!';
} else {
return 'You won!';
}
};
}
console.log(determineWinner('paper', 'paper'));
