在 React 应用程序的 Util 文件中初始化谷歌地图

Question

I use Google Maps in my React app and handle all Maps API stuff in a util file.

In my index.html page, I link to Google Maps library -- see below:

<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?libraries=places&key=my_api_key"></script>

The problem I'm having is that in my util file, I'm getting "google is not defined" error -- see below.

How do I handle this? I'm linking to Google Maps library so I don't think I can import anything because it's not an npm package.

Answer 1

Try adding window as a prefix:

const map = new window.google.maps.Map(document.createElement('div'));

Answer 2

If you including google maps with <script> you will get this warning in components too because Google Maps API is added to the global object (window). You can use window.google instead, or move to npm package created for Google Maps for example google-maps-react , @react-google-maps/api , react-google-maps .