Parent child communication in Angular is a way to pass data and trigger actions between components.

• Use @Input decorator to pass data from parent to child component

• Use @Output decorator and EventEmitter to emit events from child to parent component

• Use ViewChild decorator to access child component from parent component

• Use services to share data between unrelated components

Angular and React are both popular front-end frameworks, but they have some key differences in terms of architecture, syntax, and ecosystem.

• Angular is a full-fledged framework with a steep learning curve, while React is a library that is more flexible and easier to learn.

• Angular uses two-way data binding, while React uses one-way data flow.

• Angular has a more opinionated architecture and provides more out-of-the-box features, while React allows developers more freedom to choos...read more

Angular life cycle consists of several phases that a component goes through from creation to destruction.

• Angular components go through several life cycle hooks such as ngOnInit, ngOnChanges, ngOnDestroy, etc.

• ngOnInit is used for initialization logic, ngOnChanges is used for detecting changes in input properties, ngOnDestroy is used for cleanup tasks.

• Life cycle hooks allow developers to tap into key moments in a component's life cycle.

The rxjs operator in Angular is used for reactive programming and handling asynchronous data streams.

• RxJS operators are functions that build on the observables foundation to enable sophisticated manipulation of asynchronous data streams.

• Operators can be used to filter, transform, combine, and more on observables.

• Example: map(), filter(), mergeMap(), switchMap()

Angular has several types of pipes that can be used for data transformation and formatting.

• Angular provides built-in pipes like 'date', 'uppercase', 'lowercase', 'currency', etc.

• Custom pipes can be created for specific data transformations.

• Pipes can be used in template expressions to modify data before displaying it.

• Pipes can also be chained together for multiple transformations.

• Example: {{ myDate | date: 'short' | uppercase }} will display a short formatted date in uppercase...read more

Angular supports two types of forms: Template-driven and Reactive-driven forms.

• Template-driven forms rely on directives in the template to create and manipulate the form controls

• Reactive-driven forms are model-driven forms that are created programmatically in the component class

• Template-driven forms are easier to use and require less code, but Reactive-driven forms offer more flexibility and control

• Both types of forms use the FormsModule and ReactiveFormsModule modules respec...read more

Template and Reactive Forms in Angular are two ways to handle forms in Angular applications.

• Template Forms are based on the traditional HTML forms and are easy to use for simple forms.

• Reactive Forms are more flexible and powerful, allowing for complex form validation and dynamic form controls.

• Template Forms use two-way data binding, while Reactive Forms use a more reactive approach with observables.

• Reactive Forms are recommended for larger and more complex forms.

• Both Template...read more

Angular is a popular front-end framework for building dynamic web applications.

• Uses TypeScript for building applications

• Supports two-way data binding

• Modular architecture with components and services

• Provides dependency injection for better code organization

• Has built-in routing and forms handling

• Supports reactive programming with RxJS

• Officially maintained by Google

Angular provides a robust framework for building dynamic web applications with features like two-way data binding, dependency injection, and routing.

• Two-way data binding simplifies the process of updating the UI based on changes in the data model.

• Dependency injection allows for easier management of dependencies and promotes modular code.

• Angular's routing capabilities enable the creation of single-page applications with multiple views.

• Angular CLI provides a command-line interf...read more

Content projection in Angular allows for dynamic insertion of content into components.

• Content projection is achieved using ng-content element in the component's template.

• Allows for passing content from parent component to child component.

• ng-content can have select attribute to filter content based on specific criteria.

• Example:

  Title