angular-docs-cn/modules/angular2/docs/cheatsheet/class-decorators.md

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2015-11-05 10:04:55 -05:00
@cheatsheetSection Class decorators
@description
`import {Directive, ...} from 'angular2/angular2';`
@cheatsheetItem
`@Component({...})
class MyComponent() {}`|`@Component({...})`
Declares that a class is a component and provides metadata about the component.
@cheatsheetItem
`@Pipe({...})
class MyPipe() {}`|`@Pipe({...})`
Declares that a class is a pipe and provides metadata about the pipe.
@cheatsheetItem
`@Injectable()
class MyService() {}`|`@Injectable()`
Declares that a class has dependencies that should be injected into the constructor when the dependency
injector is creating an instance of this class.