script.js

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


// 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);

//Function to generate password
function generatePassword() {

    var capitalChar = ["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 lowerChar = ["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 numberChar = ["1", "2", "3", "4", "5", "6", "7", "8", "9", "0"];
    var specialChar = ["!", "@", "#", "$", "%", "^", "&", "*", "(", ")"];

    var newCapChar = [];
    var newLowChar = [];
    var newNumChar = [];
    var newSpecChar = [];
    var passResult = [];
    var newPassResult = [];
  
  
    // Prompt for user password length
    var passwordLength = prompt("How many characters would you like your password to be? This must be a number between 8 and 128.");
  
    // If/else statement to confirm password lenght and character selectors
    if (passwordLength < 8 || passwordLength > 128){
      alert("Password must be between 8-128 characters.");
      return generatePassword();
    }
  
    else {
      var passwordCapital = confirm("Do you want uppercase letters included in your password? Click OK for yes and cancel for no.");
      var passwordLower = confirm("Do you want lowercase letters included in your password? OK for yes and cancel for no.");
      var passwordNumber = confirm("Do you want numbers in your password? OK for yes and cancel for no.");
      var passwordSpecChar = confirm("Do you want special characters in your password? OK for yes and cancel for no.");
    }
  
    // if/else statement for creating a password with uppercase letters
    if (passwordCapital === true){
      for (i = 0; i < passwordLength; i++){ 
        var ranCap = Math.floor(Math.random() * capitalChar.length); 
        newCapChar.push(capitalChar[ranCap]); 
        passResult.push(newCapChar); 
      }
    }
  
    // if/else statement for creating a password with lowercase letters
    if (passwordLower === true){
      for (i = 0; i < passwordLength; i++){
        var ranLow = Math.floor(Math.random() * lowerChar.length);
        newLowChar.push(lowerChar[ranLow]);
        passResult.push(newLowChar);
      }
    }
  
    // if/else statement for creating a password with numerical characters
    if (passwordNumber === true){
      for (i = 0; i < passwordLength; i++){
        var ranNum = Math.floor(Math.random() * numberChar.length);
        newNumChar.push(numberChar[ranNum]);
        passResult.push(newNumChar);
      }
    }
  
    // if/else statement for creating a password with special characters
    if (passwordSpecChar === true){
      for (i = 0; i < passwordLength; i++){
        var ranSpecChar = Math.floor(Math.random() * specialChar.length);
        newSpecChar.push(specialChar[ranSpecChar]);
        passResult.push(newSpecChar);
      }
    }
  
    for (i = 0; i < passwordLength; i++){ 
      var ranPass = Math.floor(Math.random() * passResult.length); 
      var ranIndex = Math.floor(Math.random() * passwordLength);
      newPassResult.push(passResult[ranPass][ranIndex]); 
    }
  
    return newPassResult.join("");
}