Comments (4)
Every observable has a $raw
property, which points to the underlying non-reactive raw object (the one passed to the observable()
function.) You can use this to fine tune observability in two ways.
1. Example: Use $raw
in observers
import { observable, observe } from '@nx-js/observer-util'
const person = observable({ age: 20 })
observe(() => console.log(`${person.name}: ${person.$raw.age}`))
// this logs 'Bob: 20'
person.name = 'Bob'
// this won't log anything as the observer uses the non-reactive `$raw` object to access `age`
person.age = 33
2. Example: Use $raw
at observable mutations
import { observable, observe } from '@nx-js/observer-util'
const person = observable()
observe(() => console.log(person.name))
// this logs 'Bob'
person.name = 'Bob'
// this won't log anything, mutating the $raw object doesn't trigger observers
person.$raw.name = 'John'
I hope this helps. I plan to improve tests and the docs in the next days. I will boost this section a bit too.
Thanks for the issue 🙂
from observer-util.
Well Thanks for the reply , you have done tremendous job I appreciate it . It would be nice if we find a way to pair observer Nd observable neatly for eg like Mobx Observables Nd observer
Thanks
from observer-util.
One way might be using observer function like
observer('TARGET PROPERTY TO WATCH',fn())
Thanks
from observer-util.
I don't think that I will add that as a feature sorry 🙁 but it can be easily done with normal observers. Take this pseudo code example:
const person = observable({
name: 'Bob'
})
observe(() => render(person.name))
// this would equal to
// observeProp(person, 'name', () => render(person.name))
You can even build a library that does what you want on top of this library without a lot of code if you feel like doing it 🙂 . I hope this helped, I am closing this now.
from observer-util.
Related Issues (20)
- Mutating observables in reactions is forbidden HOT 2
- 4.2.0 broke something HOT 3
- Trap "toJSON" to allow serialization of proxies HOT 2
- Deeply observe object HOT 12
- Documentation suggestion HOT 2
- Is it possible to receive the type of change when observing a value? HOT 9
- Observables arrays don't appear to observe correctly HOT 3
- Question about scheduler batching and observe optimizations. HOT 2
- Problem when changing whole objects HOT 1
- Understanding reactions HOT 1
- Angular 7 Integration HOT 1
- Not sure I'm understanding this at all HOT 4
- Object.defineProperty should trigger reactions HOT 3
- computed properties no cache? HOT 3
- Observing through a Proxy HOT 2
- `construct` trap fails for observed constructors HOT 1
- Bug or user error? Copying observable to other position in array converts it to the raw item
- should observe explicit array length changes
- Shallow observing HOT 1
- rawToProxy WeakMap.set is never called
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from observer-util.