react-router browserHistory removeListen?

Question

I subscribe to route changes with

browserHistory.listen(fn)

but how can I unsubscribe?

I have tried assigning to listen null, but it complains about not being a function.

Answer 1

The return from listen is a function that will unsubscribe the listener when called. So just save it for later:

var unlisten = browserHistory.listen(fn)

// ...some time later...
unlisten()