A set of extension methods for performing common validations on strings in Dart applications.

Features

Name Validations

• Name Length: Validates the length of a name string based on provided parameters (min, max).
• Empty Check: Ensures the name is not empty.
• Character Validation: Checks if the name contains only valid characters.

Email Validations

• Empty Check: Ensures the email address is not empty.
• Format Validation: Verifies if the email address follows a valid format.

Phone Number Validations

• Empty Check: Ensures the phone number is not empty.
• Length Validation: Validates the length of the phone number within specified limits (min, max).

Password Validations

• Empty Check: Ensures the password is not empty.
• Length Validation: Validates the length of the password within specified limits (min, max).

Installation

Add nex_validations_extensions to your pubspec.yaml:

dependencies:
  nex_validations_extensions: <latest-version>

Usage

import 'package:nex_validations_extensions/nex_validations_extensions.dart';

void main() {
  String name = "John Doe";
  String email = "john.doe@example.com";
  String phoneNumber = "1234567890";
  String password = "password123";

  // Example of using name validations
  String nameError = name.nameValidations(
    min: 3,
    max: 20,
    emptyMsg: 'Name cannot be empty',
    lengthMsg: 'Name must be between 3 and 20 characters',
    validMsg: 'Name contains invalid characters',
  );

  // Example of using email validations
  String emailError = email.emailValidations(
    emptyMsg: 'Email address cannot be empty',
    validMsg: 'Invalid email address format',
  );

  // Example of using phone number validations
  String phoneError = phoneNumber.phoneNumberValidations(
    emptyMsg: 'Phone number cannot be empty',
    minLengthMsg: 'Phone number must be at least 5 digits long',
    maxLengthMsg: 'Phone number cannot exceed maximum length',
  );

  // Example of using password validations
  String passwordError = password.passwordValidations(
    min: 6,
    max: 12,
    emptyMsg: 'Password cannot be empty',
    minLengthMsg: 'Password must be at least 6 characters long',
    maxLengthMsg: 'Password cannot exceed 12 characters',
  );

  print('Name Validation Error: $nameError');
  print('Email Validation Error: $emailError');
  print('Phone Number Validation Error: $phoneError');
  print('Password Validation Error: $passwordError');
}

nex_validation