SALES: Reviewing the JavaScript Code

The video tutorial covers the use of JavaScript to add interactivity to a webpage. It explains how to handle form submissions, calculate total costs, and manage address forms. The tutorial also demonstrates email validation using regular expressions and toggling payment method fields. The instructor encourages viewers to experiment with the code to enhance their learning experience.

What event is used to trigger the calculation of the total cost in the order form?

• Change event

• Load event

• Submit event

• Click event

How is the shipping cost determined in the order form?

• By checking a box

• By entering a shipping address

• By selecting a shipping method from radio buttons

• By multiplying the product cost by the quantity

What happens when the 'same address' checkbox is checked?

• The form is submitted

• An alert is displayed

• The billing address is copied to the shipping address fields

• The shipping address fields are cleared

Which event is used to validate the email address format?

• Input event

• Click event

• Submit event

• Change event

What is the purpose of using a regular expression in email validation?

• To display the email in uppercase

• To log the email input

• To ensure the email matches a specific pattern

• To format the email as currency

How does the JavaScript code determine which payment method fields to display?

• By copying the billing address

• By validating the email address

• By listening to changes in radio button selection

• By checking the form's submit event

What happens when the PayPal radio button is selected?

• The form is submitted

• The credit card fields are displayed

• The PayPal fields are hidden

• The PayPal fields are displayed