react-native - undefined is not an object (evaluating 'window.navigator.userAgent.match')

Question

I'm using netty-socketio for my backend socket.io solution. Which requires socket.io-client to be 1.0+. If I use this version of socket client I'm getting this issue.

• socket io server used is 1.3.1
• Protocol it supports 1.0

In RN the socket client version is 1.0.1

Answer 1

该window对象代表浏览器的窗口。您在native环境中工作，因此没有浏览器。结果没有window对象。