Regular Expressions - Form Validation Project

This video tutorial covers the implementation of a user form with validation using Bootstrap and JavaScript. It begins with an introduction to regular expressions and Bootstrap setup, followed by the creation of a user form with fields for name, ZIP code, email, and phone number. The tutorial demonstrates how to add dynamic validation using JavaScript, focusing on the blur event to trigger validation. Regular expressions are used to validate input fields, providing a comprehensive guide to form validation without relying on HTML5 built-in features.

What is the purpose of adding a JavaScript file in the Bootstrap form project?

• To style the form with CSS

• To add dynamic validation logic

• To create a database connection

• To store user data

Which Bootstrap class is used to center elements horizontally?

• align-middle

• col-md-6

• mx-auto

• text-center

What event is used to trigger validation when a user leaves a form field?

• blur

• change

• focus

• click

What is the purpose of the 'is-invalid' class in Bootstrap validation?

• To display an error message and highlight the input field

• To change the input field color to green

• To submit the form

• To hide the input field

What is the range of characters allowed for a valid name in the form?

• 1 to 5 characters

• 10 to 20 characters

• 2 to 10 characters

• 5 to 15 characters

How many digits are required for a valid US ZIP code?

• 5 digits

• 6 digits

• 4 digits

• 3 digits

Which characters are allowed in the local part of an email address according to the regex pattern?

• Only numbers and dots

• Letters, numbers, underscores, dashes, and dots

• Only letters and numbers

• Only letters and underscores

What is the maximum length for a top-level domain (TLD) in the email regex pattern?

• 3 characters

• 4 characters

• 5 characters

• 6 characters

Which of the following is a valid phone number format according to the regex pattern?

• 555 555

• 555.5555

• [phone]

• 555-5555

What is the purpose of using regular expressions in form validation?

• To ensure data is in a specific format

• To connect to a database

• To style the form

• To create animations