JavaScript Masterclass - Zero to Job-Ready with Hands-On Projects - Delete Document / 275

The video tutorial focuses on implementing a delete option in a web application. It covers moving elements, adding event listeners, creating document references, and handling deletion logic. Debugging and optimizing the function are also discussed. The tutorial concludes with ensuring the delete functionality works and hints at future topics.

What was the initial task before focusing on the delete option?

• Deleting a card

• Refreshing the page

• Moving an ad to the bottom

• Adding a new card

Why is the 'querySelectorAll' method used for selecting delete buttons?

• To select buttons by ID

• To select multiple buttons

• To select buttons by class name

• To select a single button

What is the purpose of importing 'deleteDoc' and 'doc' functions?

• To create new documents

• To update existing documents

• To style the documents

• To reference and delete documents

What is the significance of the 'data ID' in the deletion process?

• It is used to update the card

• It is a unique identifier for the document

• It is a placeholder for new data

• It is used to style the card

What was the main issue with the initial event listener setup?

• The event listener was attached before the card was loaded

• The event listener was attached to the wrong element

• The event listener was not imported

• The event listener was not defined

How was the issue of the event listener not working resolved?

• By adding more event listeners

• By removing the event listener

• By changing the button style

• By converting the setup into a function

What is the benefit of keeping the delete event listener out of the loop?

• It makes the code more complex

• It increases the number of event listeners

• It reduces the number of event listeners

• It ensures the event listener is added only once

What happens when the delete icon is clicked after the setup is corrected?

• The card is updated

• The card is hidden

• The card is duplicated

• The card is deleted from the database and the page

What was the mistake made at the initial level regarding the event listener?

• Attaching the event listener before the card was loaded

• Using the wrong event type

• Attaching the event listener to a non-existent button

• Not importing the event listener

What is the next focus after setting up the delete event listener?

• Styling the page

• Updating the database

• Implementing a filter option

• Adding more cards