Mini Form Validation Library

Objective: Implement a simple form validation library that allows validating form fields based on custom rules.

Instructions:

1. Create a function named validateForm that takes an object representing form data and an object representing validation rules.
2. The function should validate each field based on the provided rules and return a result indicating whether the form is valid and what errors (if any) were found.
3. The validation rules should support checks for:
   • Required fields
   • Minimum/maximum length for text fields
   • Email format validation

Example Usage:

const formData = {
  username: 'user123',
  password: 'pass',
  email: 'user@example.com',
};
 
const validationRules = {
  username: { required: true, minLength: 5 },
  password: { required: true, minLength: 8 },
  email: { required: true, email: true },
};
 
const result = validateForm(formData, validationRules);
console.log(result);
// Output: { valid: false, errors: { password: 'Password must be at least 8 characters.' } }

Requirements:

• The function should validate based on rules like required, minLength, and email format.
• Return an object with a valid boolean and an errors object indicating what validation failed.

Bonus:

1. Add support for validating multiple types of fields (e.g., numbers, dates).