Introducing Ionic 2 (Video 9)

This video tutorial introduces the Ionic search bar component and demonstrates how to implement two-way data binding using NgModel. It covers handling exceptions by defining the model in the class and explains how to listen to key up events and handle them in JavaScript. The tutorial also shows how to react to the cancel event on the search bar. The video concludes with a summary and a preview of upcoming topics, including more Ionic components and Angular directives.

What is the purpose of using square brackets in the NgModel attribute?

• To initialize a component

• To declare a variable in the component

• To bind data from the component to the template

• To bind data from the template to the component

How can you resolve the issue of an undefined value in NgModel?

• By using a different attribute instead of NgModel

• By removing the NgModel attribute

• By initializing the model variable in the component class

• By adding a console log statement

Which event is primarily discussed for handling user input in the search bar?

• Mouseover event

• Keyup event

• Click event

• Focus event

What is the purpose of the dollar event in the keyup function?

• To cancel the event

• To bind data to the event

• To initialize a new event

• To represent the event object

What action is taken when the cancel event is triggered in the search bar?

• The search bar is removed

• The application is restarted

• The results are reset to all results

• The search bar is hidden