alphanumeric-validator

A simple and lightweight utility to check if a given string is alphanumeric. This package returns true if the string contains only letters and digits, and false otherwise.

Why Use alphanumeric-validator?

• Zero dependencies: Small footprint and quick to install.
• Straightforward API: Just one function—no overhead.
• Tested and Reliable: Every published version passes CI tests.

Installation

Install the package via npm:

npm install alphanumeric-validator

Usage

Import the function and call it with the string you want to validate:

const isAlphaNumeric = require('alphanumeric-validator');

console.log(isAlphaNumeric('abc123')); // true
console.log(isAlphaNumeric('hello world!')); // false

It’s that simple. If the string contains only letters ([a-zA-Z]) and digits ([0-9]), you’ll get true; otherwise, false.

Running Tests

If you’ve cloned this repository locally and want to run tests:

npm install
npm test

We use Jest to ensure code quality. The CI/CD pipeline also runs these tests before publishing to npm, guaranteeing that every release is verified.

Contributing

Contributions are welcome! To get started:

1. Fork the repository and create a new branch for your feature or bug fix.
2. Write tests for any new logic to ensure it’s fully covered.
3. Open a pull request, and describe what changes you’ve made and why.

Please follow the established coding style and make sure tests pass before submitting your PR.

License

This project is licensed under the ISC License.