Random Password Generator using JavaScript
Today we’ll show you how to generate a random password using JavaScript. Here, we’ll show you the most popular two methods to generate a random strong password using JavaScript.
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1. Generate a password from string
In this approach, we will create a custom function to get a random password where we have to pass the length of the password as a parameter. We’ll consider the string, number and symbol to generate a random password.
function generatePassword(len) {
var length = len ? len : 10;
var string = "abcdefghijklmnopqrstuvwxyz"; // to upper
var numeric = "0123456789";
var punctuation = "!@#$_";
var password = "";
var character = "";
while (password.length
2. Use Math.random() method
In the next approach, we’ll use the Math.random()
method to cast a random number (in the range 0..1) to a base36 string (lowercase a-z plus 0-9) and remove the leading zero and decimal point using slice()
method. Here, we have used the toUpperCase()
method to get the uppercase char in the password.
function generatePassword() {
return (
Math.random().toString(36).slice(2) +
Math.random().toString(36).toUpperCase().slice(2)
);
}
generatePassword(); // Output: ggpq0gv9iviVI1YEF4BGZ
generatePassword(); // Output: bmsv4p3v4m1CFSR0V4CXH
That’s it for today.
Thank you for reading. Happy Coding..!!