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Use jQuery to Generate Random Strings This short JavaScript article tutorial guides us how to make a random string with JavaScript (random string JavaScript) and jQuery. Both two random JavaScript functions give us the options to insert the special characters and length of string.

Try more JavaScript code examples for creating random strings, random text generators on jsB@nk:

- Random Text Generator
- Lunch Decision Maker
- Random Password Generator 2
- Random password generator
- Random Text


October is a National Cyber Security Awareness Month. The aim is to increase cyber and internet security awareness among surfers. Google and others are joining the move. So I thought I would write a post regarding internet security to add my 2 cents. In this post you will find JavaScript function that generates random passwords of any length as well as jQuery version.

JavaScript Password Generator

function password(length, special) {
 
var iteration = 0;
 
var password = "";
 
var randomNumber;
 
if(special == undefined){
     
var special = false;
 
}
 
while(iteration < length){
    randomNumber
= (Math.floor((Math.random() * 100)) % 94) + 33;
   
if(!special){
     
if ((randomNumber >=33) && (randomNumber <=47)) { continue; }
     
if ((randomNumber >=58) && (randomNumber <=64)) { continue; }
     
if ((randomNumber >=91) && (randomNumber <=96)) { continue; }
     
if ((randomNumber >=123) && (randomNumber <=126)) { continue; }
   
}
    iteration
++;
    password
+= String.fromCharCode(randomNumber);
 
}
 
return password;
}

This function takes two parameters: integer value for password length and optional boolean value true if you want to include special characters in your generated passwords.

Examples of generated passwords

password(8);
// Outputs: Yrc7TxX3

password
(12, true);
//Outputs: C}4_ege!P&#M

jQuery password generator

$.extend({ 
  password
: function (length, special) {
   
var iteration = 0;
   
var password = "";
   
var randomNumber;
   
if(special == undefined){
       
var special = false;
   
}
   
while(iteration < length){
        randomNumber
= (Math.floor((Math.random() * 100)) % 94) + 33;
       
if(!special){
           
if ((randomNumber >=33) && (randomNumber <=47)) { continue; }
           
if ((randomNumber >=58) && (randomNumber <=64)) { continue; }
           
if ((randomNumber >=91) && (randomNumber <=96)) { continue; }
           
if ((randomNumber >=123) && (randomNumber <=126)) { continue; }
       
}
        iteration
++;
        password
+= String.fromCharCode(randomNumber);
   
}
   
return password;
 
}
});

// How to use
$
.password(8);
$
.password(12, true);

JavaScript by day


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