Overview http://www.websocket.org/ 순수 웹 환경에서의 실시간 양방향 통신 유사 기술 Hidden iFrame Ajax Polling Comet (long-polling) Plug-in 기술 의존 제거 ActiveX, JavaFX, Flash, Silverlight 등 WebSocket Object 생성 new WebSocket (url, [protocol]) Attributes readyState (read only) 0 : Not established 1 : Connected, Communication possible 2 : Closing 3 : Closed bufferedAmount (read only) Methods send(data) close() Events onop..