mobx | Simple , scalable state management | State Container library
kandi X-RAY | mobx Summary
kandi X-RAY | mobx Summary
MobX is a battle tested library that makes state management simple and scalable by transparently applying functional reactive programming (TFRP). The philosophy behind MobX is simple:.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of mobx
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License : Strong Copyleft (CC BY-SA 4.0)
Copynpm install mobx mobx-react --save //to install mobx
npm install @babel/plugin-proposal-decorators @babel/plugin-proposal-class-properties @babel/plugin-transform-flow-strip-types --save
mojest.mock('mobx-react', () => {
// get the original reference to mobx-react
const originalMobx = require.requireActual('mobx-react');
// create your fake stores, they should have the same interface as the real store
const mockSconst markersStore = observable({
markers: []
});
//import markersStore or inject via mobx-react package
class MyComponent extends Component {
render() {
const CMap = withGoogleMap((props) => (
Community Discussions
Trending Discussions on mobx
QUESTION
I have defined my JSX components like this:
...ANSWER
Answered 2022-Apr-11 at 19:13I'm sorry, I don't really understand what you're trying to get at. Perhaps this will help?
QUESTION
I'm using Showdown module to obtain HTML from markdown. I want to display the generated HTML in my React component. My converter is working fine generating the HTML:
Type your markdown bounty here…
But I get this error message: Uncaught Error: Target container is not a DOM element.
Is there another/better way to display the generated HTML? Can anyone point what I'm doing wrong?
ANSWER
Answered 2022-Apr-08 at 23:47That error is thrown because you are trying to get a reference to a DOM node while it has still to be rendered on DOM itself. You could solve it by calling ReactDOM.render inside a useEffect with an empty deps array [], this way it would be executed after the first render, but you will notice that it would anyway not work as expected, since it will render a string representing HTML code, it won't parse it! ReactDOM.render is used to attach JSX code to a DOM node, while you are trying to pass an HTML string ( that' s what converter.makeHtml() returns ). So it would never work.
A working approach would be:
- Convert Markdown to HTML
- Transpile HTML/JSX to React first level API
- Parse the transpiled code
- Execute it as real JSX code
This is an example :
QUESTION
import { Observer, useLocalObservable } from 'mobx-react-lite';
function App() {
const { count, decrement, increment } = useLocalObservable(() => ({
count: 0,
increment() { this.count++ },
decrement() { this.count-- },
}));
return (
{() => ({count})}
{ decrement() }} >decrement
{ increment() }} >increment
);
}
ANSWER
Answered 2022-Mar-24 at 10:21The Observer tracks all the observable data that is dereferenced inside of it and re-renders when that observable data changes. When you dereference count from your observable outside of the Observer it is just a regular JavaScript number from that point onwards, so there is nothing for Observer to track.
You could instead dereference it inside the Observer and it will work:
QUESTION
In my mind, I want use mobx to save a state named mask, when I use axios, this state will be true and when i finshed call, this state will be false, below is my code
store.tsx
...ANSWER
Answered 2022-Mar-10 at 08:32You are calling setVisible directly in your Mask component, which causes a re-render, which causes setVisible to be called again, and the infinite loop continues.
You could make it so that you only update the state when store.isLoading actually changes with the help of useEffect:
QUESTION
After upgrading my webpack from v4 to v5, I got this error that is getting me a hard time debugging.
...ANSWER
Answered 2021-Nov-30 at 00:05For my version of this error, the issue seemed to be that I was importing a file with an alias in webpack from within the same directory.
To give an example, I had this directory setup:
QUESTION
I've created dynamic routing on my site, which changes when a user login successfully. The fact of logging I keep in global state, which observers by mobx. When the user login successfully, routes changes too, and it works correctly, but in the console, there is the next problem: Error
Error in text variant:
react-dom.development.js:67 Warning: React has detected a change in the order of Hooks called by AppRouter. This will lead to bugs and errors if not fixed. For more information, read the Rules of Hooks: https://reactjs.org/link/rules-of-hooks
Previous render Next render- useState useState
- useState useState
- useRef useRef
- useDebugValue useDebugValue
- useEffect useEffect
- useContext useContext
- undefined useContext ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
There is a screenshot of the route's component: Routes component Routes component code:
...ANSWER
Answered 2022-Mar-03 at 19:14The only overt issue I see with your code is that you are directly invoking your React components instead of rendering them as JSX for React to handle and manage the component lifecycle of.
Example:
QUESTION
Using mobx and mobx_codegen for Flutter.
My code is NOT null safe (sdk: ">=2.7.0 <3.0.0").
When mobx_codegen generates code for @computed getters, it uses null safety, which won't compile...
Sample class counter (look at @computed):
...ANSWER
Answered 2022-Feb-06 at 20:35How´s it going?
I am with the same issue in my project. I installed the new flutter version and after that my project stopped to compile. I changed my dependences of mobx, flutter_mobx, mobx_codegen and build_runner and them worked.
My first dependences:
QUESTION
I wanted to try mobx for react state management, however, I can't get this to work. I have this simple store for storing just a number called counter. You can increment/decrement it, and increse it by x. I have this file store.js for storing the state:
...ANSWER
Answered 2022-Feb-13 at 18:45Your function is losing context (this), you need to read about it to understand how it works. You destructured this function from the store and it is not bound to it anymore.
The most common way is to define all actions as arrow functions, like that:
QUESTION
I'm completely confused with the rules of mobX - react . Some methods in another project work, but not in this test.
Below is the code of my components from the test application
App.js
...ANSWER
Answered 2022-Feb-04 at 22:37You need to wrap every component that uses any observable values with observer decorator, like you did with an App. But in case of App it's actually useless because you are not using observable values there. So just wrap other components and it should work fine.
As for this line textFromFirstStore = testStoreFirst.textForSecondTestStore it won't work like you expected because you just assigned value of testStoreFirst.textForSecondTestStore to textFromFirstStore and that's it.
To make such value reactive you need to use computed value. To make computed you just need to setup a getter function, like that:
QUESTION
Assume I have legacy codebase working with some old packages:
...ANSWER
Answered 2022-Feb-02 at 10:39You can easily do that
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