What does this code do?

I can understand this code:

localConnection.onicecandidate = e => {
   if (e.candidate) {
     remoteConnection.addIceCandidate(e.candidate)
   }
}

But what does this code do?

localConnection.onicecandidate = e => !e.candidate
        || remoteConnection.addIceCandidate(e.candidate)

Sorry for the noob question!