angular-cn/modules/@angular/docs/cheatsheet/ngmodules.md

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@cheatsheetSection NgModules @cheatsheetIndex 1 @description {@target ts js}import { NgModule } from '@angular/core';{@endtarget}

@cheatsheetItem syntax(ts js): @NgModule({ declarations: ... , imports: ..., exports: ..., bootstrap: ...}) class MyModule {}|NgModule description: Defines a module that contains components, directives, pipes and providers.

@cheatsheetItem syntax(ts js): declarations: [MyRedComponent, MyBlueComponent, MyDatePipe]|declarations: description: List of components, directives and pipes that belong to this module.

@cheatsheetItem syntax(ts js): imports: [BrowserModule, SomeOtherModule]|imports: description: List of modules that are being imported into this module. Everything from the imported modules will be available to declarations of this module.

@cheatsheetItem syntax(ts js): exports: [MyRedComponent, MyDatePipe]|exports: description: List of components, directives and pipes that will be visible to modules that import this module.

@cheatsheetItem syntax(ts js): providers: [MyService, { provide: ... }]|providers: description: Array of dependency injection providers visible to contents of this module as well as everyone importing this module.

@cheatsheetItem syntax(ts js): bootstrap: [MyAppComponent]|bootstrap: description: Array of components to bootstrap when this module is bootstrapped.