- Angularjs Cheat Sheet Pdf
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| Bootstrapping | import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; |
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platformBrowserDynamic().bootstrapModule(AppModule); | It bootstraps the application, using the root component from the specified NgModule. |
| NgModules | import { NgModule } from '@angular/core'; |
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@NgModule({declarations: [], imports: [], exports: [], providers: [], bootstrap: []}); | It specifies a module, which contains components, directives, pipes, and providers. |
declarations: [MyFirstComponent, MySecondComponent, MyDatePipe] | It contains the list of components, directives, and pipes which belong to current module. |
imports: [BrowserModule, MyModule] | It contains the list of modules to import into current module. |
exports: [MyFirstComponent, MyDatePipe] | It contains the list of components, directives, and pipes visible to modules that import this module. |
providers: [MyFirstService, { provide: .. }] | It contains the list of dependency injection providers visible both to the contents of this module and to importers of this module. |
entryComponents: [MyFirstComponent, MySecondComponent] | It contains the list of components not referenced in any reachable template(i.e. dynamically created from code). |
bootstrap: [MyAppComponent] | It contains the list of components to bootstrap when this module is bootstrapped. |
Angularjs Cheat Sheet Pdf
| Class Decorators | import { Directive, .. } from '@angular/core'; |
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@Component({..}); | It will convert class as a component and provides metadata about the component. |
@Directive({..}); | It will convert class as a directive and provides metadata about the directive. |
@Pipe({..}); | It will convert class as a pipe and provides metadata about the pipe. |
@Injectable({..}); | It declares that a class can be provided and injected by other classes. Without this decorator, the compiler won't generate enough metadata to allow the class to be created properly when it's injected somewhere. |