reusable-js

JavaScript Validator and utils Functions - light weight library

A lightweight library offering essential JavaScript validation and utility functions. Simplify your code with this versatile npm package.

Installation and Usage

To integrate this library:

Install the library with npm install reusable-js

Tree-Shakeable ES Imports

For seamless integration into your project, employ tree-shakeable ES imports:

import { Utils, Validartors, RegExPattern, Numerics, Strings } from 'reusable-js'

Validator functions

Here is a list of the validators functions currently available and how to use them in your code base.

1. isPasswordMatched()

// Import the necessary function from the library.
import { Validartors } from 'reusable-js'

// Example usage:
const password = 'mySecretPassword123'
const confirmPassword = 'mySecretPassword123'
const minLength = 8

// Call the function with the required arguments.
const error = new Validartors().isPasswordMatched(password, confirmPassword, minLength)

// Check the error object for validation results.
if (error.isTooShort) {
  console.error('Password is too short.') // Handle the error accordingly.
}

if (!error.isMatched) {
  // isMatched will be false if booth password are not equal.
  console.error('Passwords do not match.') // Handle the error accordingly.
}

// If there are no errors, the passwords are valid and matched.

2. isStrongPassword()

// Import the necessary function from the library.
import { Validartors } from 'reusable-js'

// Example usage:
const password = 'MyStrongPassword123!'
const minChars = 2
const minSymbols = 2
const minNumbers = 2

// Call the function with the required arguments (and optional ones if needed).
const error = new Validartors().isStrongPassword(password, minChars, minSymbols, minNumbers)

// Check the error object for validation results.
if (!error.hasChar) {
  console.error('Password should contain at least 2 characters.') // Handle the error accordingly.
}

if (!error.hasSymble) {
  console.error('Password should contain at least 2 symbols.') // Handle the error accordingly.
}

if (!error.hasNumber) {
  console.error('Password should contain at least 2 numbers.') // Handle the error accordingly.
}

if (!error.hasUppercase) {
  console.error('Password should contain at least one uppercase letter.') // Handle the error accordingly.
}

// If there are no errors, the password is considered strong based on the provided criteria.

3. isValidEmail()

// Import the necessary function from the 'reusable-js' package.
import { Validartors } from 'reusable-js'

// Example usage:
const emailToValidate = 'example@email.com'

// Call the function with the email address to validate.
const isEmailValid = new Validartors().isValidEmail(emailToValidate)

// Check the result to determine if the email address is valid.
if (isEmailValid) {
  console.log('The email address is valid.') // Handle the valid email case.
} else {
  console.error('Invalid email format. Please provide a valid email address.') // Handle the invalid email case.
}

4. isValidPhoneNumber()

// Import the necessary functions and data from the library.
import { Validartors } from 'reusable-js'

// Example usage:
const phoneNumberToValidate = '01740000000' // Replace with the phone number you want to validate.
const locale = 'bn-BD' // Replace with the desired locale.

// Call the function with the phone number and locale.
const isPhoneNumberValid = new Validartors().isValidPhoneNumber(phoneNumberToValidate, locale)

// Check the result to determine if the phone number is valid.
if (isPhoneNumberValid) {
  console.log('The phone number is valid.') // Handle the valid phone number case.
} else {
  // Handle the invalid phone number case.
  console.error(
    'Invalid phone number format. Please provide a valid phone number'
  )
}

Util function / Helper functions

Here is a list of the Util functions / Helper functions currently available and how to use them in your code base.

1. capitalize() - String manipulation

// Import the necessary functions from the library.
import { Strings } from 'reusable-js'

// Example use case:
const inputString = 'hello world' // Replace with the string you want to capitalize.

// Call the function with the input string
const capitalizedString = new Strings().capitalize(inputString)

// Print the capitalized string
console.log('Capitalized String:', capitalizedString) // output 'Hello world';

2. capitalizeAll() - String manipulation

// Import the necessary functions from the library.
import { Strings } from 'reusable-js'

// Example use case:
const inputString = 'hello world' // Replace with the string you want to capitalize.

// Call the function with the input string
const capitalizedString = new Strings().capitalizeAll(inputString)

// Print the capitalized string
console.log('Capitalized String:', capitalizedString) // output 'Hello World';

3. truncatedString() - String manipulation

// Import the necessary functions from the library.
import { Strings } from 'reusable-js'

// Example use case:
const inputString = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit.'

// Optional: Define start and end positions for truncation (these are the default values used in this example).
const startPosition = 0 // Start position for truncation (default is 0)
const endPosition = 30 // End position for truncation (default is 30)

// Call the function with the input string and optional start and end positions.
const truncated = new Strings().truncatedString(inputString, startPosition, endPosition)

// Print the truncated string
console.log('Original String:', inputString)
console.log('Truncated String:', truncated) // Expected Output: Lorem ipsum dolor sit amet...

How to Contribute to reusable-js

Thank you for considering contributing to reusable-js I welcome your contributions and have outlined the following steps to help you get started.

Prerequisites

Before you start contributing, make sure you have the following installed on your system:

• Node.js: - (v16.16.0) To run JavaScript/TypeScript code and manage dependencies using npm.
• Git: To clone the repository and create branches for your contributions.

Fork the Repository

GitHub repository

Clone the Repository

Open your terminal and run the following command to clone the repository to your local machine.

git clone git@github.com:lac617a/reusable-js.git

Install Dependencies

Navigate to the project directory and install the project dependencies:

cd reusable-js
npm install

Create a Branch

git checkout -b feature/add-new-functionality

Make Changes

Make your desired changes or improvements to the library code. Ensure that your code follows the project's coding style and guidelines.

Code Formatting and Linting

I have used Prettier and ESLint to maintain code consistency. Before committing your changes, run the following commands to format and lint your code:

npm run prettier   # Format code with Prettier
npm run lint     # Lint code with ESLint

Test Your Changes

Before submitting a pull request, it's crucial to test your changes thoroughly. Run any provided tests and create new ones if necessary.
Make sure that the existing tests pass and that your new code doesn't introduce any regressions.

#Test command
npm run test

Commit Your Changes

Once your changes are complete and tested, commit your changes with a clear and concise commit message:

git commit -m "feat: description of your changes"

Push Your Changes

Push your changes to your forked repository on GitHub:

git push -u origin feature/add-new-functionality

Create a Pull Request

Provide a detailed description of your changes in the pull request.

Merge Your Pull Request

Once your pull request is approved, it will be merged into the main project. Congratulations, you've successfully contributed to reusable-js!

Thank You

Thank you for your contribution to reusable-js! Your efforts help improve the library.