Angular 2.0 Components

Angular 2.0 Components


Modules 

designed for performed single task.Every angular app has at least one root module and more featured module.angular is a class which is decorated with @NgModule.

NgModule is a decorator function that takes a single metadata object whose properties describe the module.
  • Declarations : Describes the view class for the module.there are three kind of view class available
    • Components 
    • Directives 
    • Pipes
  • Imports- Define the modules that we want to import in our module.
  • Providers- creators of services that this module contributes to the global collection of services; they become accessible in all parts of the app.
  • Exports- Defines the name for the module, using which we can use this module.
  • Bootstrap- It defines the main component to be Bootstrap in main.ts file.

Components

similar to a controller class with a template so components deal with view of the Application and the logic on the page.
           further in other word You define a component's application logic—what it does to support the view—inside a class. The class interacts with the view through an API of properties and methods.


OR


A component consists of

  • Class : consists of properties and methods like C and C#.
  • Meta data : defines the way to process a class.
  • Template : define the HTML view which is displayed in the application.



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