How to show prompt when leaving component

How can I show a confirm popup to app users when they are moving away from component. I want to show a message something like "Unsaved changes. Do you want to leave?" and based on user action, I want to control navigation.

I tried `onExit()` function inside component but returning `false` here does not prevent navigation.

I am looking for something like **_react-router: setRouteLeaveHook_**.