Infosys UI Developer Interview Questions and Answers

Performance issues in Angular can be handled by optimizing code, reducing HTTP requests, and using lazy loading.

• Optimize code by using trackBy in ngFor loops

• Reduce HTTP requests by using caching and pagination

• Use lazy loading to load only necessary components

• Use AOT compilation to reduce load time

• Avoid using ngIf with heavy computations

• Use ChangeDetectionStrategy.OnPush to reduce change detection cycles

Custom directives in AngularJS allow you to create reusable components.

• Create a new directive using the directive() method

• Specify the directive's behavior using the link() method

• Use the directive in HTML using its name as an attribute

• Pass data to the directive using attributes

• Example:

Angular is a JavaScript framework for building web applications with a modular architecture.

• Angular uses a component-based architecture to build reusable UI components

• It uses a declarative approach to define UI elements and their behavior

• Angular provides a powerful set of tools for data binding, dependency injection, and routing

• It follows the MVC (Model-View-Controller) pattern to separate concerns and improve maintain...read more