OTP Generator

A simple utility for generating random One-Time Passwords (OTPs) in JavaScript. Generates a random OTP of the specified length. It is designed to be simple and efficient, making it easy to integrate into your applications.

Features

• Generates Numeric OTPs: The generated OTPs consist of numeric digits only.
• Customizable Length: You can specify the length of the OTP, with a default value of 6.
• Simple and Easy to Use: The function is straightforward to integrate into your applications.
• Handles Invalid Inputs Gracefully: The function throws an error for invalid lengths, ensuring robust error handling.

Installation

To use this utility, you can simply copy the code into your project. If you are using Node.js, you can create a module as follows:

npm install otp-random-generator

Usage

Import the module in your Node.js project:

const { generateOTP } = require('otp-random-generator');

Generate a 6-digit OTP (default length)

const otp6 = generateOTP();
console.log('6-digit OTP:', otp6);

Generate an 8-digit OTP

const otp8 = generateOTP(8);
console.log('8-digit OTP:', otp8);

Generate a 4-digit OTP

const otp4 = generateOTP(4);
console.log('4-digit OTP:', otp4);

Example Output

6-digit OTP: 394857
8-digit OTP: 48392057
4-digit OTP: 1204

Function: generateOTP

Description

The generateOTP function generates a random OTP of the specified length. It is designed to be simple and efficient, making it easy to integrate into your applications.

Parameters

• length (number): The length of the OTP to generate. The default value is 6. The length must be a positive integer.

Returns

• A string representing the generated OTP.

Throws

• An error if the length is less than or equal to 0.