account-check

account-check is a simple library for validating email and password formats. The library helps to ensure that email addresses are correctly formatted and passwords meet basic security criteria.

Installation

Install the package using npm:

npm install account-check

Functions

isValidEmail(email: string): boolean

This function checks if a given email address is valid.

Parameters

• email (string) - The email address to be validated.

Returns

• boolean: Returns true if the email is valid, and false if the email is invalid.

Example Usage

const { isValidEmail } = require('account-check');

console.log(isValidEmail('[email protected]')); // true (valid email)
console.log(isValidEmail('invalid-email'));    // false (invalid email)

isValidPassword(password: string): boolean

This function checks if a given password meets the following criteria:

• At least 9 characters long
• Contains at least one letter
• Contains at least one number
• Contains at least one special character

Parameters

• password (string) - The password to be validated.

Returns

• boolean: Returns true if the password is valid, and false if the password is invalid.

Example Usage

const { isValidPassword } = require('account-check');

console.log(isValidPassword('StrongPass1!')); // true (valid password)
console.log(isValidPassword('weakpass'));     // false (invalid password)

Test Cases

Here are some test cases to ensure that the validation functions work as expected:

const { isValidEmail, isValidPassword } = require('./account_check');

// Email Tests
test('Returns true for a valid email', () => {
  expect(isValidEmail('[email protected]')).toBe(true);
});

test('Returns false for an invalid email', () => {
  expect(isValidEmail('invalid-email')).toBe(false);
});

// Password Tests
test('Returns true for a valid password', () => {
  expect(isValidPassword('StrongPass1!')).toBe(true);
});

test('Returns false for an invalid password (too short)', () => {
  expect(isValidPassword('short')).toBe(false);
});

test('Returns false for an invalid password (missing special character)', () => {
  expect(isValidPassword('NoSpecialChar1')).toBe(false);
});

test('Returns false for an invalid password (missing number)', () => {
  expect(isValidPassword('NoNumbers!')).toBe(false);
});

test('Returns false for an invalid password (missing letter)', () => {
  expect(isValidPassword('12345678!')).toBe(false);
});

Updates and Contact

Feel free to contact me via email if you need further updates or improvements to this library. If additional validation logic is required, I will be happy to add it.

License

This project is licensed under the MIT License - see the LICENSE file for details.