Why choose Angular JS?
Introduction AngularJS is a very popular open source JavaScript frameworks in the world of web application development. Since its inception, it has witnessed phenomenal growth in terms of adoption and community support—both from individual developers and corporations. The expanded HTML syntax in AngularJS framework is to make the web applications more expressive and live. The latest version Angular 2 provides many benefits over Angular 1 including dramatically better performance, more effective templating, lazy loading, simpler APIs, easier debugging and much more.
Angular JS Features
Difference between Angular 1.x and Angular 2.0
Better in Performance
Language Parsing Tools
Component Based UI
User Input with the Event Syntax
Architecture of Angular 2
Module Directive
Template Property Binding
Meta Data
Component
Event Binding
Injector Services
Meta Data
Angular 2 Environment To Start working with Angular 2, you need to get the following key components installed. •
Npm − This is known as the node package manager that is used to work with the open source repositories. Angular JS as a framework has dependencies on other components. And npm can be used to download these dependencies and attach them to your project.
•
Git − This is the source code software that can be used to get the sample application from the github angular site.
•
Editor − There are many editors that can be used for Angular JS development such as Visual Studio code and WebStorm. In our tutorial, we will use Visual Studio code which comes free of cost from Microsoft.
Angular 2 Component
MODULE
COMPONENTS
METADATA
TEMPLATE
DATA BINDING
SERVICE
DIRECTIVE
DEPENDENCY INJECTION
Benefits of Angular 2
Improved Dependency Injection
TypeScript
Component-Based
Tooling
Simpler Routing
Asynchronous Template Compilation
Best Practices- Performance 1. Web Workers 2. Runtime Optimizations 3. Use enable ProdMode 4. Use Application Shell 5. Pre-fetching Resources 6. Remove scripts, stylesheet from index.html 7. Tree-shaking 8. Minification and Dead code elimination
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