JavaScript Masterclass - Zero to Job-Ready with Hands-On Projects - Filter Documents / 276

The video tutorial covers setting up filtering functionality in a web application. It begins with importing necessary modules and setting up event listeners to track category clicks. The tutorial then explains how to create filters based on these clicks, handle the 'All' category, and manage active states for selected categories. The video concludes with suggestions for further customization, such as ordering data by creation date.

What are the two modules imported for filtering operations?

• query and where

• find and sort

• filter and map

• select and order

What is the purpose of adding an event listener to the category list?

• To change the background color

• To track clicks and filter items

• To sort items alphabetically

• To delete items from the list

How is the category determined when a span is clicked?

• By reading the span's data attribute

• By checking the span's class

• By reading the span's inner text

• By checking the span's ID

What is the first step in creating a query reference?

• Define the query type

• Select the collection reference

• Choose the sorting order

• Set the query limit

What happens when the 'all' category is clicked?

• No items are displayed

• Only Netflix items are shown

• All items are displayed

• Only YouTube items are shown

Why is it necessary to convert the category text to lowercase?

• To encrypt the data

• To match the stored data format

• To improve performance

• To make it uppercase

What is the purpose of the 'filtered cards' function?

• To sort the cards

• To filter and display cards based on category

• To delete the cards

• To add new cards

How is the active state managed for categories?

• By hiding inactive spans

• By adding a class to the clicked span

• By disabling inactive spans

• By changing the span's text color

What issue was encountered with the active state management?

• Active state was not visible

• Active state was applied to all spans

• Active state was not removed from previous spans

• Active state caused an error

What improvement was suggested for ordering the items?

• Order by name

• Order by color

• Order by created date

• Order by size