Function handler

example/src/App.js:159–164

(e)

  useEffect(() => {
    const handler = (e) => {
      const match = getWebsite(e.url)
      if (match != null) {
        setWebSite(match)
      }
    }
    Linking.addEventListener('url', handler)

    Linking.getInitialURL().then((url) => {