Strong Password Check

A Node.js module that checks the strength of a password based on configurable criteria.

Installation

To install the package, run the following command:

npm i strong-password-check --save

Usage

const getPasswordStrength = require('strong-password-check');

const password = 'myPassword123#';

const config = {
    lowercase: true,
    uppercase: true,
    digits: true,
    specialChars: true,
    minLength: 8,
};

const result = getPasswordStrength(password, config);

console.log(result);
// { messages: [], strength: 'Strong' }

The package exports a single function, getPasswordStrength, which takes two arguments:

• password: A string representing the password to check.
• config: An object containing the configuration options for the password strength checker. The following options are available:

| value | Type | Default Value | Description | | ----------- | -------- | -------------- | ----------------------------------------------------------------- | | uppercase | Boolean | true | Whether the password must contain at least one uppercase letter. | | lowercase | Boolean | true | Whether the password must contain at least one lowercase letter. | | digits | Boolean | true | Boolean. Whether the password must contain at least one number. |
| specialChars | Boolean | true | Whether the password must contain at least one special charecter. | | minLength | Number | 8 | Number. The minimum length of the password. |

The getPasswordStrength function returns an object with two properties:

• messages: An array of strings containing messages for each criterion that the password does not meet.
• strength: A string indicating the strength of the password. Possible values are "Weak", "Moderate", and "Strong".

Contributing

Contributions are welcome! If you find a bug or would like to add a feature, please open an issue or pull request on GitHub.

Author

• @nihalavulan