js code to generate random base64 code

1function getRandomString(length) {
2    var randomChars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
3    var result = '';
4    for ( var i = 0; i < length; i++ ) {
5        result += randomChars.charAt(Math.floor(Math.random() * randomChars.length));
6    }
7    return result;
8}
9var randString = getRandomString(20);//get rand alphanumberic 20 char string
10var randBase64String = btoa(randString); // Base64 encode the String

1var string = "Hello folks how are you doing today?";
2var encodedString = btoa(string); // Base64 encode the String
3var decodedString = atob(encodedString); // Base64 decode the String
4

1function getRandomString(length) {
2    var randomChars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
3    var result = '';
4    for ( var i = 0; i < length; i++ ) {
5        result += randomChars.charAt(Math.floor(Math.random() * randomChars.length));
6    }
7    return result;
8}
9
10//usage: getRandomString(20); // pass desired length of random string

1function makeid() {
2  var text = "";
3  var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
4
5  for (var i = 0; i < 5; i++)
6    text += possible.charAt(Math.floor(Math.random() * possible.length));
7
8  return text;
9}
10
11console.log(makeid());
12