script.js

function generatePassword() {
 
  /* Arrays to be used for random password */
  let 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'];
  let 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'];
  let specialChar = ['!', '@', '#', '$', '%', '^', '&', '*', '?','+'];
  let number = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '10'];
  let allChars = []

  function chooseLength() {
  var length = prompt("How long do you want your random password to be? (MIN: 8 characters  MAX: 128 characters)", "");
  length = parseInt(length);
    if (length < 8) {
      alert('Your password length is too short! Try again!');
      chooseLength();
    }
    else if (length > 128) {
      alert('Your password is too long! Try again!');
      chooseLength();
    }
    else if (isNaN(length) === true) {
      alert('You must enter a number! Try again!');
      chooseLength();
    }
    else {
      console.log(length);
      return length
    }
  };
  var passwordLength = chooseLength();
  
  while(!lowerCheck && !upperCheck && !numCheck && !specialCheck){
    alert("You must choose at least one criteria")
    var lowerCheck = confirm("Do you want to include Lower case characters?")
    var upperCheck = confirm("Do you want to include Upper case characters?")
    var numCheck = confirm("Do you want to include Number characters?")
    var specialCheck = confirm("Do you want to include Special characters?")
  }

    if(lowerCheck){
      allChars = allChars.concat(lowerCase)
    }
    if(upperCheck){
      allChars = allChars.concat(upperCase)
    }
    if(numCheck){
      allChars = allChars.concat(number)
    }
    if(specialCheck){
      allChars = allChars.concat(specialChar)
    }
  // /* Function to validate user input and include lowercase characters in randomized password if user answers Yes to prompt */
  // function chooseLower() {
  //   var passwordLower = prompt("Do you want your random password to have lowercase letters?", "");
  //   passwordLower.toLowerCase();
  //   if (passwordLower === 'yes') {
  //     allChars.push(lowerCase);
  //   } 
  //   else if (passwordLower === 'no') {
      
  //   } 
  //   else {
  //     alert('You must enter "Yes" or "No"! Try again!');
  //     chooseLower();
  //   }
  // };
  
  // /* Function to validate user input and include uppercase characters in randomized password if user answers Yes to prompt */
  // function chooseUpper() {
  //   var passwordUpper = prompt("Do you want your random password to have uppercase letters?", "");
  //   passwordUpper.toLowerCase();
  //   if (passwordUpper === 'yes') {
  //     allChars.push(upperCase);
  //   } 
  //   else if (passwordUpper === 'no') {
      
  //   } 
  //   else {
  //     alert('You must enter "Yes" or "No"! Try again!');
  //     chooseUpper();
  //   }
  // };
  
  // /* Function to validate user input and include special characters in randomized password if user answers Yes to prompt */
  // function chooseSpecial() {
  //   var passwordSpecial = prompt("Do you want your random password to have special characters?", "");
  //   passwordSpecial.toLowerCase();
  //   if (passwordSpecial === 'yes') {
  //     allChars.push(specialChar);
  //   } 
  //   else if (passwordSpecial === 'no') {
      
  //   } 
  //   else {
  //     alert('You must enter "Yes" or "No"! Try again!');
  //     chooseSpecial();
  //   }
  // };
  
  // /* Function to validate user input and include numbers in randomized password if user answers Yes to prompt */
  // function chooseNumber() {
  //   var passwordNumber = prompt("Do you want your random password to have numbers?", "");
  //   passwordNumber.toLowerCase();
  //   if (passwordNumber === 'yes') {
  //     allChars.push(number);
  //   } 
  //   else if (passwordNumber === 'no') {

  //   } 
  //   else {
  //     alert('You must enter "Yes" or "No"! Try again!');
  //     chooseNumber();
  //   }
  // };
  
  // chooseLower();
  // chooseUpper();
  // chooseSpecial();
  // chooseNumber();
  
/* Function that randomizes elements from the specified array */
//  function getRandom() {
//   let index = allChars[Math.floor(Math.random() * allChars.length)];
//   return index
//  };
  let password = ""
  for(i=0; i<passwordLength; i++){
    randomIndex = Math.floor(Math.random()* allChars.length);
    randomCharacter = allChars[randomIndex]
    password += randomCharacter
  }

  return password
//   let password = [];
//   /* runs the function the inputted number of times to get a random string of characters from the arrays */
//   for (i = 0; i < passwordLength; i++) {
//    password.push(getRandom());
//   }
//    return password.join("")

};


// Get references to the #generate element
var generateBtn = document.querySelector('#generate');



// Write password to the #password input
function writePassword() {
  var randomPassword = generatePassword();
  var passwordText = document.querySelector('#password');
  
  return passwordText.value = randomPassword;
};



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