Complete Angular Course: Lecture 1

Jul 11, 2024

Complete Angular Course: Lecture 1

Introduction

  • Learn everything about Angular step-by-step without skipping any topic
  • Brief overview of Angular

What is Angular?

  • Popular JavaScript framework for building client-side applications
  • Provides reusable code (predefined methods, classes, interfaces)
  • Primarily used for creating Single Page Applications (SPAs)

Topics Covered in Lecture 1

  • What is Angular?
  • What is a Single Page Application (SPA)?
  • Why use Angular?
  • Different versions of Angular

Angular Overview

  • Development platform for building SPAs for mobile and desktop
  • Uses HTML, CSS, and a programming language like TypeScript or JavaScript
  • Not a programming language; It is a framework

Framework Explained

  • Platform for developing software applications
  • Has predefined classes and functions
  • Reuses code to perform functionalities instead of writing from scratch
  • Example: Making HTTP requests smoother with Angular's predefined methods

Single Page Applications (SPA)

  • Only one HTML page gets loaded initially (e.g., index.html)
  • As the user navigates, URL changes but the same HTML page is used
  • JavaScript dynamically changes the content based on user navigation
  • Examples: Gmail, Netflix
  • Advantages: Faster and more reactive, no need to request HTML data repeatedly

SPA vs Traditional Web Applications

  • Traditional: Each page request fetches a new HTML document from the server
  • SPA: Only one initial HTML document, subsequent navigations handled via JavaScript

Benefits of Angular

  • Loosely coupled structure, easy to understand and maintain
  • Reusable utility code for navigation and browser history
  • Improved testability and ease of automated testing

Angular Versions

  • AngularJS: Released in October 2010, JavaScript framework, popular but complex
  • Angular (2+): Released in 2016, rewritten from scratch using TypeScript, addressed issues of AngularJS
  • Versions: Angular 2, 4, 5, 6, 7, ..., 16 (latest at the time of the lecture)
  • New version of Angular released every 6 months with minor changes or new features
  • AngularJS (deprecated) vs Angular (active): Only Angular 2+ referred to as Angular

Course Focus

  • Learn about Angular (Angular 2+) and its later versions
  • Not focused on AngularJS

Next Steps

  • Creating the first Angular project in the next lecture