Offline-First Apps with Angular, Ionic, PouchDB, and CouchDB - Four-Way-Binding

What is the purpose of subscribing to changes in PouchDB using the 'since now' parameter?

• To delete old data from the database

• To backup the database

• To receive real-time updates as changes occur

• To get historical data from the database

Why is it considered bad practice to access the subject directly in the application?

• It slows down the application

• It enables anyone to change the subject's values

• It allows unauthorized access to the database

• It can lead to data loss

What is the role of the 'table Subject' in the application?

• To store all database entries

• To notify changes and allow subscription to these changes

• To backup the database

• To delete outdated data

What is the benefit of storing subscriptions in an array?

• It makes the code more readable

• It helps in managing and cleaning up subscriptions to prevent memory leaks

• It increases the speed of the application

• It allows for easier debugging

Why is it important to specify the type of the changed value in the subscription?

• To increase the speed of data retrieval

• To reduce memory usage

• To ensure type safety and avoid errors

• To improve application performance

What should be done in the 'Ng on destroy' method?

• Create new database entries

• Unsubscribe from all active subscriptions

• Log all changes to the console

• Initialize new subscriptions

What is the purpose of adding a console warning in the change handler?

• To help debug and track changes

• To improve application performance

• To alert users of changes

• To log errors in the application

What is the significance of the 'handle change' method in the application?

• It logs user activity

• It processes and responds to detected changes

• It initializes the database

• It deletes old data

How does the application ensure that changes in the database are reflected in the view?

• By storing changes in a temporary file

• By implementing a change handler that updates the view

• By using a polling mechanism

• By manually refreshing the page

What does four-way data binding achieve in the application?

• It allows data to be sent to multiple databases

• It synchronizes changes between the front end and back end

• It enables data encryption

• It improves application security