Creating a prompt within a while loop

Issue with the code is that it should only progress if the user inputs "rock", "paper" or "scissors". However, after re-entering any input the second time, it still moves on despite passing the condition in the while loop. For instance, entering "asdf" prompts for re-entry, but then if "asdf" is entered again, it exits the loop and logs out "asdf". The goal is to continue prompting the user until they enter one of the specified choices

let userChoice = prompt("Enter rock, paper, or scissors", "rock").toLowerCase();

while (userChoice !== "rock" && userChoice !== "paper" && userChoice !== "scissors") {
  userChoice = prompt("Please enter again");
}

console.log(userChoice);
javascriptwhile-loopdo-whileprompt

Answer №1

If the user tries to enter multiple times, the system will reject them and exit.

     let userResponse = prompt("Type rock, paper, or scissors").toLowerCase();
        while (userResponse != "rock" && userResponse != "paper" && userResponse !=
            "scissors") {
            userResponse = prompt("Please try again");
           
        }
        console.log(userResponse)

Answer №2

Once you set userChoice to "paper", "scissors", or "rock", it will remain that way unless changed, preventing the while loop from restarting.

After running the code following the while loop, consider adding something like this:

while (userChoice !== "rock" && userChoice !== "paper" && userChoice !== "scissors" ) {
  userChoice = prompt("Please re-enter");
}

console.log(userChoice);

userChoice = 0;

Keep in mind that this approach is effective only when your code is embedded within another loop:

loop{
    var userChoice = prompt("Enter rock, paper, or scissors", "rock").toLowerCase();

    var userChoice = prompt("Enter rock, paper, or scissors", "rock").toLowerCase();


    while (userChoice !== "rock" && userChoice !== "paper" && userChoice !== "scissors" ) {
      userChoice = prompt("Please re-enter");
    }

    console.log(userChoice);
    userChoice = 0;
}

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