May 2018
Intermediate to advanced
512 pages
11h 3m
English
Content preview from Angular 6 for Enterprise-Ready Web Applications
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Sibling interactions with subjects
The main reason for components to interact is to send or receive updates to data either provided by the user or received from the server. In Angular, your services expose RxJS.Observable endpoints, which are data-streams that your components can subscribe to. RxJS.Observer compliments RxJS.Observable as a consumer of events emitted by Observable. RxJS.Subject brings the two sets of functionalities together, in an easy to work with object. You can essentially describe a stream that belongs to a particular set of data, such as the current weather data that is being displayed, with subjects:
src/app/weather/weather.service.tsimport { Subject } from 'rxjs'...export class WeatherService implements IWeatherService ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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