const AppContainer: React.SFC<IAppContainerProps & IAppContainerState & IAppContainerDispatch> = props => (
<IntlProvider locale={props.locale} defaultLocale="en-US" messages={props.localeMessages}>
<App
isAuthenticated={props.isAuthenticated}
isLoaded={props.isLoaded}
isCollapsed={props.isCollapsed}
switchWindow={props.switchWindow}
/>
</IntlProvider>
);what does this syntax mean and where does props pass in
? this is a functional component that TypeScript writes, SFC (Stateless Functional Components) for stateless.
your writing is one of two ways React defines components.
< IAppContainerProps & IAppContainerState & IAppContainerDispatch >
indicates type checking of typeScript. Used to enforce type constraints.
other places should declare code similar to the following:
interface IAppContainerProps {
name: string
}
interface IAppContainerState {
name: string
}
interface IAppContainerDispatch {
name: string
} props is the
AppContainer this component.
identifies AppContainer as React.SFC < IAppContainerProps & IAppContainerState & IAppContainerDispatch >
this is a high-order component, and props is passed through function arguments
props is generally provided to the parent component.
is the one that is passed in when the AppContainer component is called.
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