rx-context v0.5.0

rx-context

Still under development.

This angular module is based on Rob Wormald's presentation at the angular meetup in April.

Installation

You can install it like this.

npm install rx-context

Usage

It provides a directive to unwrap and manage an observable.

<div *rxContext="let data on data$">
  {{data.title}}
</div>

This could be done also with the async like this.

{{(data | async)?.title}}

But the rx-content directive can also handle errors, completion of observables with corresponding templates. It also can handle observables that return a null values or are replaced by null

You can use optional ng-template like with *ngIf.

Full example.

<div *rxContext="let data on data$; error errorBlock 
                                    complete completeBlock 
                                    empty emptyBlock">
  {{data.title}} changes with every next()
</div>
<ng-template let-error #errorBlock>
  only show when the observable has an 
  {{error}}
</ng-template>
<ng-template #completeBlock>
  only show when the observable completed
</ng-template>
<ng-template #emptyBlock>
  only show when the observable returns an null value or
  is null
</ng-template>

Development

This project was generated with Angular CLI version 1.3.0.

Development server

Run ng serve for a dev server. Navigate to http://localhost:4200/. The app will automatically reload if you change any of the source files.

Code scaffolding

Run ng generate component component-name to generate a new component. You can also use ng generate directive|pipe|service|class|guard|interface|enum|module.

Build

Run ng build to build the project. The build artifacts will be stored in the dist/ directory. Use the -prod flag for a production build.

Running unit tests

Run ng test to execute the unit tests via Karma.

Running end-to-end tests

Run ng e2e to execute the end-to-end tests via Protractor. Before running the tests make sure you are serving the app via ng serve.

Further help

To get more help on the Angular CLI use ng help or go check out the Angular CLI README.