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我是React和Redux的新手,以前我只使用Angular。我嘗試使用Redux時,發生了學習React的第一個問題。我定義我的簡單的狀態,動作,減速並存儲在index.tsx
文件:React,Redux和Typescript - 如何獲得這個工作
export interface AppState {
count: number;
}
const INCREMENT = 'INCREMENT';
export class IncrementAction implements Action {
type = INCREMENT;
}
function opsReducer(state: AppState = {} as AppState, action: IncrementAction): AppState {
console.log("ops reducer", action);
switch (action.type) {
case INCREMENT:
return { ...state, count: state.count + 1 } as AppState;
default:
return state;
}
}
const rootReducer = combineReducers({
ops: opsReducer
});
const store = createStore(rootReducer);
ReactDOM.render(
<Provider store={store}>
<App appName="Test" />
</Provider>,
document.getElementById('root') as HTMLElement
);
而且修改應用程序組件,因此它是連接和看起來像
interface StateProps {
appName: string;
}
interface DispatchProps {
increment:() => void;
}
class App extends React.Component<StateProps & DispatchProps> {
render() {
return (
<div className="App">
<button onClick={this.props.increment}>CLICK ME {this.props.appName}</button>
</div>
);
}
}
function mapDispatchToProps(dispatch: Dispatch<AppState>) {
return {
increment:() => dispatch(new IncrementAction())
} as DispatchProps;
}
export default connect<StateProps, DispatchProps>(null, mapDispatchToProps)(App);
有一個錯誤的index.tsx文件:
Type '{}' is not assignable to type 'Readonly<Pick<StateProps & DispatchProps, "appName">>'.
Property 'appName' is missing in type '{}'.
如何解決它?如何讓所有這些工作與TypeScript的硬打字工作?當我最終修復它時,如何組織源代碼?哪些東西應該移至分隔文件?我喜歡基於特徵的代碼分離。如何用React和Redux做到這一點?