（窗口中的“ Websocket”）似乎不起作用？

Question

I was told this was supposed to work in Chrome, but the check always results as false .

Here is my code:

if("Websocket" in window){
    Echo.socket = new WebSocket(host);
} else if("MozWebsocket" in window) {
    Echo.socket = new MozWebSocket(host);
} else {
    console.log("Error: websocket is not supported by this browser");
    return;
}

I always get the Error: websocket... in the console. Why?

Answer 1

Your capitalization of the words "Websocket" and "MozWebsocket" is wrong. You need a capital letter S for socket.

You need to check for "WebSocket" and "MozWebSocket" in window .