javascript password generator

1function generatePassword(passwordLength) {
2  var numberChars = "0123456789";
3  var upperChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
4  var lowerChars = "abcdefghijklmnopqrstuvwxyz";
5  var allChars = numberChars + upperChars + lowerChars;
6  var randPasswordArray = Array(passwordLength);
7  randPasswordArray[0] = numberChars;
8  randPasswordArray[1] = upperChars;
9  randPasswordArray[2] = lowerChars;
10  randPasswordArray = randPasswordArray.fill(allChars, 3);
11  return shuffleArray(randPasswordArray.map(function(x) { return x[Math.floor(Math.random() * x.length)] })).join('');
12}
13
14function shuffleArray(array) {
15  for (var i = array.length - 1; i > 0; i--) {
16    var j = Math.floor(Math.random() * (i + 1));
17    var temp = array[i];
18    array[i] = array[j];
19    array[j] = temp;
20  }
21  return array;
22}
23
24alert(generatePassword(12));

1var Password = {
2 
3  _pattern : /[a-zA-Z0-9_\-\+\.]/,
4  
5  
6  _getRandomByte : function()
7  {
8    // http://caniuse.com/#feat=getrandomvalues
9    if(window.crypto && window.crypto.getRandomValues) 
10    {
11      var result = new Uint8Array(1);
12      window.crypto.getRandomValues(result);
13      return result[0];
14    }
15    else if(window.msCrypto && window.msCrypto.getRandomValues) 
16    {
17      var result = new Uint8Array(1);
18      window.msCrypto.getRandomValues(result);
19      return result[0];
20    }
21    else
22    {
23      return Math.floor(Math.random() * 256);
24    }
25  },
26  
27  generate : function(length)
28  {
29    return Array.apply(null, {'length': length})
30      .map(function()
31      {
32        var result;
33        while(true) 
34        {
35          result = String.fromCharCode(this._getRandomByte());
36          if(this._pattern.test(result))
37          {
38            return result;
39          }
40        }        
41      }, this)
42      .join('');  
43  }    
44    
45};

1/*
2    This code comes from Vincent Lab
3    And it has a video version linked here: https://www.youtube.com/watch?v=PtnYuiIyqeM
4*/
5
6function generate() {
7
8    let password = "";
9
10    let length = +document.getElementById("length").value;
11
12    let lowerCase = document.getElementById("lowercase").checked;
13    let upperCase = document.getElementById("uppercase").checked;
14    let symbol = document.getElementById("symbols").checked;
15    let number = document.getElementById("numbers").checked;
16
17    if (lowerCase + upperCase + symbol + number <= 0)
18        return;
19
20    for (let i = 0; i < length; i++) {
21
22        const r = generater(0, 3);
23        if (lowerCase && r === 0) {
24            password += generateRandomLowerCase();
25        } else if (upperCase && r === 1) {
26            password += generateRandomUpperCase();
27        } else if (symbol && r === 2) {
28            password += generateRandomSymbol();
29        } else if (number && r === 3) {
30            password += generater(0, 9);
31        } else {
32            i--;
33        }
34
35    }
36
37    document.getElementById("result").textContent = password;
38
39}
40
41generate();
42
43function generateRandomLowerCase() {
44    return String.fromCharCode(generater(97, 122));
45}
46
47function generateRandomUpperCase() {
48    return String.fromCharCode(generater(65, 90));
49}
50
51function generateRandomSymbol() {
52    const symbols = "~*$%@#^&!?*'-=/,.{}()[]<>";
53    return symbols[generater(0, symbols.length - 1)];
54}
55
56function generater(min = 0, max = 1) {
57    return Math.floor(Math.random() * (max + 1 - min) + min);
58}

1 const Numbers = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
2  const Names = ["Aaran", "Aaren", "Aodeba","Zaid", "Zain", "Zaine", "Zaineddine", "Zainedin", "Zak", "Zakaria", "Zakariya", "Zakary", "Zaki", "Zakir", "Zakk", "Zamaar", "Zander", "Zane", "Zarran", "Zayd", "Zayn", "Zayne", "Ze", "Zechariah", "Zeek", "Zeeshan", "Zeid", "Zein", "Zen", "Zendel", "Zenith", "Zennon", "Zeph", "Zerah", "Zhen", "Zhi", "Zhong", "Zhuo", "Zi", "Zidane", "Zijie", "Zinedine", "Zion", "Zishan", "Ziya", "Ziyaan", "Zohaib", "Zohair", "Zoubaeir", "Zubair", "Zubayr", "Zuriel"]
3  const Symbols = ["#", "£", "@", "%", "?", "!", "+", "$", "-", "*"]
4  const RandomName = Names[Math.floor(Math.random() * Names.length)];
5  const RandomNumber = Numbers[Math.floor(Math.random() * Numbers.length)];
6  const RandomNumber2 = Numbers[Math.floor(Math.random() * Numbers.length)];
7  const RandomSymbol = Symbols[Math.floor(Math.random() * Symbols.length)];
8  const RandomSymbol2 = Symbols[Math.floor(Math.random() * Symbols.length)];
9  const RandomSymbol3 = Symbols[Math.floor(Math.random() * Symbols.length)];
10  const RandomSymbol4 = Symbols[Math.floor(Math.random() * Symbols.length)];
11  const Password = `${RandomNumber2}${RandomSymbol}${RandomName}${RandomNumber}${RandomSymbol4}`
12  const Password2 = `${RandomNumber2}${RandomSymbol2}${RandomName}${RandomSymbol3}${RandomSymbol4}`
13  const Password3 = `${RandomNumber}${RandomNumber2}${RandomName}${RandomNumber}${RandomSymbol4}`
14  const Password4 = `${RandomSymbol2}${RandomSymbol3}${RandomName}${RandomNumber2}${RandomNumber}`
15  const Passwords = [Password, Password2, Password3, Password4]
16  const GeneratedPassword = Passwords[Math.floor(Math.random() * Passwords.length)];
17  const GeneratedPasswordToLowerCase = GeneratedPassword.toLowerCase()
18  /* Print The Passwords*/
19  console.log(GeneratedPassword)
20  console.log(GeneratedPasswordToLowerCase)

1function getpass() {
2    var chars = "0123456789~!@#$%^&*()_+}{[]|abcdefghikjlmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
3    var pass = "";
4    var passLength = 16;
5    for (var i = 0; i < passLength; i++) {
6        var randPass = Math.floor(Math.random() * chars.length);
7        pass += chars.substring(randPass, randPass+1);
8    }
9    document.getElementById('strong_pass').value = pass;
10}
11function copyToClipboard() {
12    var copyText = document.getElementById('strong_pass');
13    var copyPass = document.getElementById('strong_pass').value;
14    var fa_iocn = document.getElementsByClassName('fa');
15    if (copyPass == "") {
16        alert("Please Generate Password");
17    }else {
18        $(fa_iocn).removeClass("fa-copy");
19        $(fa_iocn).addClass("fa-check");
20        $("#strong_pass").addClass("focus_success");
21        alert("Password Copied Successfully")
22    }
23    copyText.select();
24    copyText.setSelectionRange(0, 99999);
25    document.execCommand("copy");
26}
27$(".strong_pass_generator #generatorbutton").click(function(){
28    $(".strong_pass_generator i").removeClass("fa-check");
29    $(".strong_pass_generator i").addClass("fa-copy");
30});

1<input type='text' id='p'/><br/>
2<input type='button' value ='generate' onclick='document.getElementById("p").value = Password.generate(16)'>