How to pass props to a function and access it in a component using react and typescript?

Question

i want to pass props along with routercomponent props and access it in a component using react and typescript.

i have a MainComponent which has a ChildComponent. I want to pass props namely isOpen, showdialog and hidedialog props to the ChildComponent.

Below is the code,

function MainComponent() {
    render= () => {
        return(
            <Route
                exact
                path="/items"
                render={routeProps => (
                    <Layout>
                        <ChildComponent
                            isOpen={isOpen}// how to access this
                            showDialog={showDialog} //how to access this
                            hideDialog={hideDialog} //how to access this
                            {...routeProps}
                        />
                    <Layout>
                )}
            />
        )
    }
}

function ChildComponent({ history }: RouteComponentProps) {
    //some logic
}

I have tried accessing like below

interface Props {
    isOpen: boolean;
    showDialog: any;
    hideDialog: any;
}

function ChildComponent({ history }: RouteComponentProps) { 
    //how to access it here...
}

I am not knowing how to access it here. could someone help me fix this. thanks.

Shubham Khatri Shubham Khatri · Accepted Answer · 2020-05-22T11:02:15

You can define the props interface to be a combination of RouteComponentProps and ChildProps. Post that destructure them from props

interface Props {
    isOpen: boolean;
    showDialog: any;
    hideDialog: any;
}

function ChildComponent({ history, isOpen, showDialog, hideDialog }: Props & RouteComponentProps<{}>) { 

}

P.S on a sidenote , a functional component doesn't have a render function so you just needed to write your MainComponent like

function MainComponent() {
    return(
        <Route
            exact
            path="/items"
            render={routeProps => (
                <Layout>
                    <ChildComponent
                        isOpen={isOpen}
                        showDialog={showDialog}
                        hideDialog={hideDialog}
                        {...routeProps}
                    />
                <Layout>
            )}
        />
    )
}

How to pass props to a function and access it in a component using react and typescript?

2 Answers