script.js

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

var numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0];
var specialCharacters = ["!", "@", "#", "$", "%", "&"];
var uppercase = [
  "A",
  "B",
  "C",
  "D",
  "E",
  "F",
  "G",
  "H",
  "I",
  "J",
  "K",
  "L",
  "M",
  "N",
  "O",
  "P",
  "Q",
  "R",
  "S",
  "T",
  "U",
  "V",
  "W",
  "X",
  "Y",
  "Z",
];
var lowercase = [
  "a",
  "b",
  "c",
  "d",
  "e",
  "f",
  "g",
  "h",
  "i",
  "j",
  "k",
  "l",
  "m",
  "n",
  "o",
  "p",
  "q",
  "r",
  "s",
  "t",
  "u",
  "v",
  "w",
  "x",
  "y",
  "z",
];

var choiceArray = [];

function generatePassword() {
  //saves the typed in password lengeth as a integer
  var length = parseInt(
    window.prompt(
      "Please choose the length of your password. Must be atleast 8 characters and no longer than 128 charcters."
    )
  );
  if (length >= 8 && length <= 128) {
    //runs the function again is a number is typed in that is lower than 8 or greater than 128
  } else {
    window.alert(
      "Please choose a charcter length greater than 8 characters and less than 128 charcters."
    );
    return generatePassword();
  }

  //adds uppercase characters to password if "OK" is clicked
  if (confirm("Would you like your password to have uppercase characters?")) {
    choiceArray = choiceArray.concat(uppercase);
  }

  //adds lowercase characters to password if "Ok" is clicked
  if (confirm("Would you like your password to have lowercase characters?")) {
    choiceArray = choiceArray.concat(lowercase);
  }

  //adds numbers to password if "OK" is clicked
  if (confirm("Would you like your password to have numbers?")) {
    choiceArray = choiceArray.concat(numbers);
  }

  //adds special characters to password if "OK" is cliced
  if (confirm("Would you like your password to have special characters?")) {
    choiceArray = choiceArray.concat(specialCharacters);
  }

  //the code that picks the chcraters rnadomly for the password
  var password = "";
  for (var i = 0; i < length; i++) {
    var randomIndex = Math.floor(Math.random() * choiceArray.length);
    password = password + choiceArray[randomIndex];
  }

  return password;
}

// Write password to the #password input
function writePassword() {
  var password = generatePassword();
  var passwordText = document.querySelector("#password");

  passwordText.value = password;
}

// Add event listener to generate button
generateBtn.addEventListener("click", writePassword);