Rex State - a handy utility to convert your hooks into shared states
Dani Akash 🧪💥
Posted on September 12, 2020
Introducing Rex State v1.0
I initially built rex-state as a state management library, however, since it was using the Context API it wasn't very efficient with handling re-renders.
But then its another feature became more prominent. It can easily convert any hook into a shared state!
Focusing on this functionality, Today I'm releasing Rex State 1.0. This tool is easy to use and will work with your existing hooks.
Usage
Add rex-state to your project
yarn add rex-state
# or
npm i rex-state
Consider you have the following counter hook ﹣
const useCounterHook = (initialCount) => {
const [count, setCount] = useState(initialCount || 0);
const increaseCount = () => setCount(count + 1);
const decreaseCount = () => setCount(count - 1);
return {
count,
increaseCount,
decreaseCount
};
};
You can use rex-state to create a provider and a shared hook using the following code ﹣
import { createRexStore } from "rex-state";
const {
useStore: useCounter,
RexProvider: CountProvider
} = createRexStore(useCounterHook);
Wrap your application inside the CountProvider
﹣
export default function App() {
// Starting off with an initial count of 10
return (
<CountProvider value={10}>
<CountDisplay />
<Controls />
</CountProvider>
);
}
Now you can use useCounter
hook inside both <CountDisplay/>
& <Controls/>
components. When the count changes in the <Controls/>
component, it will cause the <CountProvider/>
to re-render & will also update the <CountDisplay/>
component.
This is based on the React.Context API. I have written a detailed page on its performance & when to use it in your application.
Following is a working codesandbox of the counter app ﹣
Read about it detail on Github
Share your thoughts about using this library. I'm open to feedbacks & ideas ✌🏽
Posted on September 12, 2020
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