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docs(ngmodule): improved NgModule summary description 

closes #2203
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Ward Bell 2016-08-26 10:02:49 -07:00
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public/docs/ts/latest/guide/ngmodule.jade
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@ -7,7 +7,12 @@ block includes
:marked :marked
**Angular Modules** help organize an application into cohesive blocks of functionality. **Angular Modules** help organize an application into cohesive blocks of functionality.
An Angular Module _class_ is adorned with the **NgModule** decorator that defines metadata about the module. An Angular Module is a _class_ adorned with the **@NgModule** decorator function.
`_@NgModule` takes a metadata object that tells Angular how to compile and run module code.
It identifies the module's _own_ components, directives and pipes,
making some of them public so external components can use them.
It may add service providers to the application dependency injectors.
And there are more options covered here.
This chapter explains how to **create** `NgModule` classes and how to load them, This chapter explains how to **create** `NgModule` classes and how to load them,
either immediately when the application launches or later, as needed, via the [Router](router.html). either immediately when the application launches or later, as needed, via the [Router](router.html).
@ -74,10 +79,9 @@ a#angular-modularity
An Angular module is a class decorated with `@NgModule` metadata. The metadata: An Angular module is a class decorated with `@NgModule` metadata. The metadata:
* declare which components, directives and pipes _belong together_. * declare which components, directives and pipes _belong_ to the module.
* make some of those classes public so that other component templates can use them. * make some of those classes public so that other component templates can use them.
* hide other classes as implementation details. * import other modules with the components, directives and pipes needed by the components in _this_ module.
* import other modules with the components, directives and pipes it needs.
* provide services at the application level that any application component can use. * provide services at the application level that any application component can use.
Every Angular app has at least one module class, the _root module_. Every Angular app has at least one module class, the _root module_.