Angular Developer interview questions

Angular offers a modular architecture, two-way data binding, dependency injection, and a comprehensive set of tools that streamline development processes.

Two-way data binding in Angular allows automatic synchronization of data between the model (component class) and the view (template), meaning any change in the data reflects instantly in the view and vice-versa.

Services in Angular are singleton objects that enable the sharing of data and functionality across components, adhering to the Separation of Concerns principle.

State management in Angular can be handled using services for localized data, NgRx for robust and structured state management, or by using local storage for simple data persistence.

Angular's dependency injection is a design pattern that allows an object to receive other objects it depends on without explicitly instantiating them within the class, making the code more modular and testable.

Directives in Angular are classes that add additional behavior to elements in your Angular applications. They are used to manipulate the Document Object Model (DOM) by changing its layout, appearance, or removing elements.

An Angular module is a container that encapsulates related components, services, directives, and pipes, organizing them into a cohesive block of functionality, typically represented by an NgModule.

Angular uses the HttpClient module to handle HTTP requests, which provides a simplified API for HTTP functionality, supporting features like interception, error handling, and request retry.

Performance optimization in Angular can be achieved through techniques like lazy loading modules, reducing bundle sizes via AOT compilation, using OnPush change detection strategy, and avoiding unnecessary expressions in templates.

Pipes in Angular are functions that transform data displayed in templates, allowing developers to display data in a desired format, such as currency, date, or string transformation, without changing the source data.