Angular Reactive Development: Difference between revisions
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Created page with "=Introduction= ==Background== RxJs originally was developed by Microsoft in Rx.NET. It works on Java and other platforms. The definition is "RxJs is a library for composing as..." |
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*Resilient to failure -error checking all the time | *Resilient to failure -error checking all the time | ||
*Reactive to state changes | *Reactive to state changes | ||
==Resources== | |||
The demos were at https://github.com/DeborahK/Angular-RxJS | |||
Revision as of 01:30, 6 December 2020
Introduction
Background
RxJs originally was developed by Microsoft in Rx.NET. It works on Java and other platforms. The definition is "RxJs is a library for composing asynchronous and event-based programs using observable sequences"
Other approaches
- Callbacks - difficult to use with nested async operations
- Promises - can only handle a single emission and is not cancellable
- Asyc/await - can only handle a single emission and is not cancellable
Why Rxjs
- One - technical for all data e.g. mouse clicks, api calls
- Compositional - with the operators easy to transform and combine
- Watchful - With its push model to notify subscribers
- Laxy - Only executes when subscribed to
- Handles Error - Built in
- Cancellable
Angular already use RxJs in
- Routing
- Reactive Forms
- HttpClient
Reactive Development
This is characterized by
- Quick to react to user - drrrrrr
- Resilient to failure -error checking all the time
- Reactive to state changes
Resources
The demos were at https://github.com/DeborahK/Angular-RxJS