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rock-paper-scissors.js
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rock-paper-scissors.js
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//Gather user input
const getUserChoice = userInput => {
userInput = userInput.toLowerCase();
if (userInput === 'rock' || userInput === 'paper' || userInput === 'scissors' ){
return userInput;
} else {
console.log('Error, please type: rock, paper or scissors.');
}
}
//Have the computer choose a random number
const getComputerChoice = () => {
const randomNumber = Math.floor(Math.random() * 3);
//Assign number to an answer
switch (randomNumber) {
case 0:
return 'rock';
case 1:
return 'paper';
case 2:
return 'scissors';
}
};
const determineWinner = (userChoice, computerChoice) => {
if (userChoice === computerChoice) {
return 'The game was a tie';
}
if (userChoice === 'rock') {
if (computerChoice === 'paper') {
return 'The computer wins';
} else {
return 'You win!';
}
}
if (userChoice === 'paper') {
if (computerChoice === 'rock') {
return 'You win!';
} else {
return 'The computer wins';
}
}
if (userChoice === 'scissors') {
if (computerChoice === 'paper') {
return 'The computer wins';
} else {
return 'You win!';
}
}
};
const playGame = () => {
const userChoice = getUserChoice('rock');
const computerChoice = getComputerChoice();
console.log('You threw: '+ userChoice);
console.log('The computer threw: ' + computerChoice);
console.log(determineWinner(userChoice, computerChoice));
};
playGame();