ONE BCG Senior Software Engineer Interview Questions and Answers

Ionic life-cycle hooks are methods that allow developers to perform actions at specific points in the life-cycle of an Ionic component.

• Ionic life-cycle hooks include ionViewWillEnter, ionViewDidEnter, ionViewWillLeave, ionViewDidLeave, ionViewWillUnload, and ionViewDidUnload.

• These hooks can be used to perform tasks such as data loading, navigation, and cleanup.

• For example, ionViewWillEnter is called just before the com...read more

Ionic v4 has significant performance improvements, new features like lazy loading, and better support for web components.

• Improved performance with faster rendering and reduced load times

• Introduction of lazy loading for better app performance

• Better support for web components integration

• Updated design system with new features like CSS variables and shadow parts

To create a menu in Ionic v4, you can use the ion-menu component.

• Use the ion-menu component in your app's HTML template to define the menu layout.

• Configure the menu content and behavior using attributes like side, type, and contentId.

• Add ion-menu-toggle buttons in your app's main content area to toggle the menu.

• Customize the menu styling and behavior using CSS and Angular logic.

Angular life-cycle hooks are methods that allow you to tap into specific points in a component's life-cycle.

• ngOnChanges: Called when an input property changes

• ngOnInit: Called once the component is initialized

• ngDoCheck: Called during every change detection run

• ngAfterContentInit: Called after content (ng-content) has been projected into the component

• ngAfterContentChecked: Called after every check of the projected content

• ...read more

To translate an Ionic app in multiple languages, you can use ngx-translate library.

• Use ngx-translate library for Angular to handle translations in Ionic app

• Create language files for each supported language with key-value pairs for translations

• Implement language switch functionality to allow users to change languages

• Use pipes in HTML templates to display translated text dynamically

Deploying to iOS and Android apps involves using platform-specific tools and following specific guidelines.

• For iOS, use Xcode to build and deploy the app to the App Store or TestFlight.

• For Android, use Android Studio or Gradle to build and deploy the app to Google Play Store or other distribution channels.

• Follow platform-specific guidelines for app submission, including app signing, metadata, and screenshots.

• Test the a...read more