I am trying to complete the Rock-Paper-Scissors challenge from The Odin Project. I am stuck; I don't know why when I run my code, my function playRound returns undefined. Any help would be appreciated.
const computerPlay = () => { //Randomly returns 'Rock', 'Paper', or 'Scissors'
let choices = ['rock', 'paper', 'scissors'];
let computerChoice = choices[Math.floor(Math.random() * choices.length)];
return computerChoice;
}
const playRound = (playerSelection, computerSelection) => {
playerSelection = playerSelection.toLowerCase;
if (playerSelection === computerSelection) {
return "It's a tie";
} else {
switch (playerSelection.toLowerCase) {
case 'rock':
switch (computerSelection) {
case 'paper':
return "You Lose! Paper beats Rock";
case 'scissors':
return "You Win! Rock beats Scissors";
}
case 'paper':
switch (computerSelection) {
case 'rock':
return "You Win! Paper beats Rock";
case 'scissors':
return "You Lose. Scissors beats Paper"
}
case 'scissors':
switch(computerSelection) {
case 'rock':
return "You Lose. Rock beats scissors";
case 'paper':
return "You Win. Scissors beats Paper"
}
}
}
}
const playerSelection = "rock";
const computerSelection = computerPlay();
console.log(playRound(playerSelection, computerSelection));
You're missing parentheses on toLowerCase method.
const computerPlay = () => { //Randomly returns 'Rock', 'Paper', or 'Scissors'
let choices = ['rock', 'paper', 'scissors'];
let computerChoice = choices[Math.floor(Math.random() * choices.length)];
return computerChoice;
}
const playRound = (playerSelection, computerSelection) => {
playerSelection = playerSelection.toLowerCase();
if (playerSelection === computerSelection) {
return "It's a tie";
} else {
switch (playerSelection.toLowerCase()) {
case 'rock':
switch (computerSelection) {
case 'paper':
return "You Lose! Paper beats Rock";
case 'scissors':
return "You Win! Rock beats Scissors";
}
case 'paper':
switch (computerSelection) {
case 'rock':
return "You Win! Paper beats Rock";
case 'scissors':
return "You Lose. Scissors beats Paper"
}
case 'scissors':
switch(computerSelection) {
case 'rock':
return "You Lose. Rock beats scissors";
case 'paper':
return "You Win. Scissors beats Paper"
}
}
}
}
const playerSelection = "rock";
const computerSelection = computerPlay();
console.log(playRound(playerSelection, computerSelection));You are missing parentheses -> .toLowerCase()
const sentence = 'My Dog Is Brown';
console.log(sentence.toLowerCase());
// expected output: "my dog is brown"
The .toLowerCase() method returns the value of the string converted to lower case.
.toLowerCase() does not affect the value of the string itself.