script.js

var upCase = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
var lowCase = "abcdefghijklmnopqrstuvwxyz";
var numb = "1234567890";
var specChar = "!@#$%^&()',/\|`~{[}]*+=?><.-_";

var userSel = [];
var userPass = [];

// Assignment Code
var generateBtn = document.querySelector("#generate");

// Write password to the #password input
function writePassword() { // ask the user the length
  let length = prompt("Choose the length of your password to be between 8 and 128 characters.");
  
  if (length > 8 && length < 128) {
      alert ("Great, just a few more questions.")
   } else {
        alert("Please make sure you enter at least a number above 8 and no greater then 128");
      return;
      }

  console.log(length); 

//    ask the user the uppercase
   let upperCharac = confirm("Would you like the password to have upper case letters?");
   if (upperCharac) {
       userSel.push(... upCase);
   }
   console.log(userSel);

    // ask the user the lowercase
    let lowerCharac = confirm("Would you like the password to have lower case letters?");
    if (lowerCharac) {
        userSel.push(... lowCase);
       
    }
    console.log(userSel);
  
    // ask the user the special characters
    let special = confirm("Would you like the password to have special characters?");
    if (special) {
        userSel.push(... specChar);
    }
    console.log(userSel);
  
    // ask the user the numbers
    let numbers = confirm("Would you like the password to have numbers?");
    if (numbers) {
        userSel.push(... numb);
    }
    console.log(userSel);
  
      for (let i = 0; i < length; i++) {
      userPass.push(userSel[Math.floor(Math.random() * userSel.length)]);
      console.log(userPass.join("+"));

      }

        var passwordText = document.querySelector("#password");

        passwordText.value = userPass.join("");
          
      }
        generateBtn.addEventListener("click", writePassword);