Build Rock Paper Scissors - failing with function


Hello Everyone:

Obviously new to JavaScript and could sure use some help. I have looked at other posts for help but I don't see them following the instructions, specifically, creating/capturing the User and Computer choices within functions. I see them done in global variables.

I think my challenge is an inability to get the results out of a function to work with them farther down in the code.

Below, I am just trying to get the user's choice. If I type the wrong text, it prints the ELSE section and logs the error message to screen without fail. But if I type a correct response, I get a blank screen. I even added a console.log statement within the function to print the results and nothing but a blank screen. If I add "console.log(userInput);" at the end outside the function, I get the error "ReferenceError: userInput is not defined."

Again, I am trying to follow instructions and have this run within functions....unless I am misunderstanding the instructions.

function getUserChoice() {

var userInput = prompt('What is your choice? Choose rock, paper or scissors.');
userInput = userInput.toLowerCase();
if (userInput === 'rock' || userInput === 'paper' || userInput === 'scissors') {
return userInput;
} else {
console.log('Error! Please try again!');


Thank you all, Gerald


because function ends the moment a return keyword is in your code

return userInput;
console.log(userInput); //unreachable 'console' after return

what you can do call the function inside console.log .like


because userInput inside the function is now local can't access outside of function.

remove the var keyword to make it global variable.


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