How to check if Websocket is open in Javascript

Question

I am testing the way web sockets work in Javascript, tried the code this way:

(function(){     
   socket = new Websocket('ws://achex.ca:4010');

   socket.onopen  =  function(){
        console.log("Connection is now open")
  }
})

Nothing appears in console log...what am I doing wrong?

Does this answer your question? [How to get the current status of a javascript websocket connection](https://stackoverflow.com/questions/23369368/how-to-get-the-current-status-of-a-javascript-websocket-connection) — Arcanus, Mar 12 '22 at 03:54

score 5 · Answer 1 · answered Apr 18 '20 at 11:57

ThereadyState property of the websocket contains the connection of the websocket at all times as specified in the WebSocket API

It will be one of the following values : CONNECTING OPEN CLOSING or CLOSED

A way to work if it's open is :

if (yourWsObject.readyState === WebSocket.OPEN) {
   // Do your stuff...
}

How to check if Websocket is open in Javascript

1 Answers1