TypeScript and Socket.io
There is @types/socket.io now, just install it by running:
npm i --save @types/socket.io
You should use socket.io-client d.ts file in the client and while using socket.io d.ts file on the server.
I created my own .d.ts file, it's rather short but it works well:
declare var io : { connect(url: string): Socket;};interface Socket { on(event: string, callback: (data: any) => void ); emit(event: string, data: any);}This declaration file can be imported to client side Typescript and the socket.io standard example will work, here's my Typescript version:
var socket=io.connect("localhost");socket.on("news",(data:any)=>alert(data));socket.emit("news","hello");