hydux-react
v0.3.4
Published
React enhancer for hydux, hydux is an elm-like state manager inspired by Hyperapp, Elmish, Elm, Redux, etc. Working with any vdom library!
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hydux-react
React renderer for hydux.
Install
yarn add hydux hydux-react # or npm i hydux hydux-react
Usage
import _app from 'hydux'
import withPersist from 'hydux/lib/enhancers/persist'
import withReact, { React } from 'hydux-react'
let app = withReact()(_app)
export default app({
init: () => { count: 1 },
actions: {
down: () => state => ({ count: state.count - 1 }),
up: () => state => ({ count: state.count + 1 })
},
view: (state: State, actions: Actions) =>
<div>
<h1>{state.count}</h1>
<button onClick={actions.down}>–</button>
<button onClick={actions.up}>+</button>
</div>
})
Helpers
PureView
React.PureComponent helper, with which the component uses a shallow prop comparison to determine whether to re-render, which in turn prevents unnecessary re-rendering.
import { PureView } from 'hydux-react'
export function View(props) {
return (
<PureView stateInUse={props}> // The props passed to PureView would be shallow compared and determine whether diff and render child components.
{(props) => <ChildComponent {...props} />} // here we pass function as children to avoid executing child components' render function.
</PureView>
)
}
ErrorBoundary
We can use the ErrorBoundary component to catch children's error, which requires a React 16 feature.
import { ErrorBoundary } from 'hydux-react'
export function View(props) {
return (
<ErrorBoundary
report={(error, errorInfo) => void} // Custom error handler function
renderMessage={(error, errorInfo) => React.ChildNode} // Custom error message renderer, default is `return null`
>
{() => <ChildComponent {...props} />} // here we pass function as children to catch errors in child components' render function.
</ErrorBoundary>
)
}
Counter App
git clone https://github.com/hydux/hydux-react.git
cd examples/counter
yarn # or npm i
npm start
Now open http://localhost:8080 and hack!
License
MIT