What is Angular ?

Angular is a TypeScript-based open-source framework for building web applications. It is developed and maintained by Google and was initially released in 2010 as AngularJS (or simply Angular 1). However, the framework underwent a complete rewrite and was released as Angular 2 in 2016, with subsequent versions following a regular release schedule.

• 2011: Facebook starts using a JavaScript library called XHP for building UI components. XHP was based on PHP, and its syntax resembled HTML.

• 2011: Jordan Walke, a software engineer at Facebook, builds a prototype of React called "FaxJS" during a Hackathon event. FaxJS aimed to solve the performance issues Facebook was facing with XHP.

• 2013: React is officially released by Facebook as an open-source project at the JSConf US conference. The initial version of React focused on solving the challenge of efficiently updating complex UI components.

• 2015: React Native is introduced, allowing developers to build native mobile applications using React. It leverages the power of React's component model and declarative syntax to create cross-platform mobile apps.

• 2016: React Fiber, a reimplementation of React's core algorithm, is announced. React Fiber improves the performance and enables new features like asynchronous rendering and better support for concurrent updates.

• 2018: React Hooks are introduced, providing a new way to write stateful components and manage state without using class components. Hooks simplify component logic and encourage reusability.

• 2020: React 17 is released with some notable changes. It introduces React's new JSX Transform, which removes the need to import the React object in each file using JSX. Additionally, it improves error handling and paves the way for smoother upgrades in the future.

• 2021: Concurrent Mode, a new feature in React, is introduced as an experimental API. Concurrent Mode aims to improve the responsiveness and user experience of React applications by enabling more efficient rendering and better scheduling of updates.

Syllabus

1. Introduction to Angular

   • What is Angular?
   • Angular version history
   • Setting up the development environment
   • Angular CLI and project structure

2. TypeScript Basics

   • Introduction to TypeScript
   • Type annotations and inference
   • Classes, interfaces, and modules
   • Compiling TypeScript to JavaScript

3. Angular Components

   • Creating components
   • Component lifecycle hooks
   • Templating with Angular's template syntax
   • Data binding and interpolation

4. Directives

   • Understanding built-in directives (ngIf, ngFor, etc.)
   • Creating custom directives
   • Attribute and structural directives
   • Host listeners and host bindings

5. Services and Dependency Injection

   • Creating services
   • Injecting services using dependency injection
   • Singleton services vs. instance services
   • Hierarchical injectors and providers

6. Routing and Navigation

   • Setting up routes and route configuration
   • Defining route parameters and query parameters
   • Router guards for authentication and authorization
   • Lazy loading modules

7. Forms and Validation

   • Template-driven forms
   • Reactive forms and form controls
   • Form validation and error handling
   • Working with form data

8. HTTP Communication

   • Making HTTP requests using Angular's HttpClient module
   • Handling responses and error handling
   • Interceptors for modifying requests and responses
   • Mocking HTTP requests for testing

9. Component Communication

   • Input and output properties
   • Event emitters and event binding
   • Parent-child component communication
   • Communication via shared services

10. Angular Modules

    • Understanding Angular modules
    • Feature modules and lazy loading
    • Shared modules and exporting components
    • NgModule decorators and configuration

11. Angular Pipes

    • Built-in pipes (e.g., date, number, uppercase)
    • Creating custom pipes
    • Parameterizing pipes
    • Chaining and using pipes in templates

12. Testing Angular Applications

    • Unit testing components, services, and pipes
    • Using the TestBed and testing utilities
    • Mocking dependencies and providing test data
    • End-to-end testing with Protractor or Cypress

13. Angular Best Practices and Performance Optimization

    • Angular coding conventions and style guide
    • Performance optimization techniques
    • Change detection strategies
    • Angular DevTools and debugging

14. Angular and State Management (Optional)

    • Introduction to state management
    • Using Redux (ngrx) or other state management libraries
    • Managing application state and actions
    • Integrating with Angular components

History

1. Introduction to Angular

   • What is Angular?
   • Angular version history
   • Setting up the development environment
   • Angular CLI and project structure

2. TypeScript Basics

   • Introduction to TypeScript
   • Type annotations and inference
   • Classes, interfaces, and modules
   • Compiling TypeScript to JavaScript

3. Angular Components

   • Creating components
   • Component lifecycle hooks
   • Templating with Angular's template syntax
   • Data binding and interpolation

4. Directives

   • Understanding built-in directives (ngIf, ngFor, etc.)
   • Creating custom directives
   • Attribute and structural directives
   • Host listeners and host bindings

5. Services and Dependency Injection

   • Creating services
   • Injecting services using dependency injection
   • Singleton services vs. instance services
   • Hierarchical injectors and providers

6. Routing and Navigation

   • Setting up routes and route configuration
   • Defining route parameters and query parameters
   • Router guards for authentication and authorization
   • Lazy loading modules

7. Forms and Validation

   • Template-driven forms
   • Reactive forms and form controls
   • Form validation and error handling
   • Working with form data

8. HTTP Communication

   • Making HTTP requests using Angular's HttpClient module
   • Handling responses and error handling
   • Interceptors for modifying requests and responses
   • Mocking HTTP requests for testing

9. Component Communication

   • Input and output properties
   • Event emitters and event binding
   • Parent-child component communication
   • Communication via shared services

10. Angular Modules

    • Understanding Angular modules
    • Feature modules and lazy loading
    • Shared modules and exporting components
    • NgModule decorators and configuration

11. Angular Pipes

    • Built-in pipes (e.g., date, number, uppercase)
    • Creating custom pipes
    • Parameterizing pipes
    • Chaining and using pipes in templates

12. Testing Angular Applications

    • Unit testing components, services, and pipes
    • Using the TestBed and testing utilities
    • Mocking dependencies and providing test data
    • End-to-end testing with Protractor or Cypress

13. Angular Best Practices and Performance Optimization

    • Angular coding conventions and style guide
    • Performance optimization techniques
    • Change detection strategies
    • Angular DevTools and debugging

14. Angular and State Management (Optional)

    • Introduction to state management
    • Using Redux (ngrx) or other state management libraries
    • Managing application state and actions
    • Integrating with Angular components

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