Challenge: Validation

Task

In this final challenge, let's implement validation logic for the input fields. The task is to check if the input field values are empty strings. If they are empty, it is necessary to display the corresponding warning messages. Follow the steps below:

• Check if the input field responsible for the user's first name is empty.
• Check if the input field responsible for the user's last name is empty.
• Check if the input field responsible for the user's email is empty.