random password javascript

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showing results for - "random password javascript"
Christian
21 Feb 2019
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));
Josué
13 Aug 2016
1 const randomStringMake = (count)=> {
2    const letter = "0123456789ABCDEFGHIJabcdefghijklmnopqrstuvwxyzKLMNOPQRSTUVWXYZ0123456789abcdefghiABCDEFGHIJKLMNOPQRST0123456789jklmnopqrstuvwxyz";
3    let randomString = "";
4    for (let i = 0; i < count; i++) {
5        const randomStringNumber = Math.floor(1 + Math.random() * (letter.length - 1));
6        randomString += letter.substring(randomStringNumber, randomStringNumber + 1);
7    }
8    return randomString
9}
10 
11console.log(randomStringMake(10))
Aline
02 Apr 2016
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};
Asher
24 Mar 2017
1const alpha = 'abcdefghijklmnopqrstuvwxyz';
2const calpha = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
3const num = '1234567890';
4const specials = ',.!@#$%^&*';
5const options = [alpha, alpha, alpha, calpha, calpha, num, num, specials];
6let opt, choose;
7let pass = "";
8for ( let i = 0; i < 8; i++ ) {
9  opt = Math.floor(Math.random() * options.length);
10  choose = Math.floor(Math.random() * (options[opt].length));
11  pass = pass + options[opt][choose];
12  options.splice(opt, 1);
13}
14console.log(pass);
15
Leandro
21 Mar 2020
1<input type='text' id='p'/><br/>
2<input type='button' value ='generate' onclick='document.getElementById("p").value = Password.generate(16)'>
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