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javascript - Where is the Socket.IO client-side .js file located?

问题描述:

I am trying to get socket.io (Node library) to work.

I have the server-side js working, and it is listening. The socket.io website states simply:

<script src="/socket.io/socket.io.js"></script>

<script>

var socket = io.connect('http://localhost');

socket.on('news', function (data) {

console.log(data);

socket.emit('my other event', { my: 'data' });

});

</script>

This is nice, however, what JS file am I importing!?!

I went into the node_modules directory, where I installed socket.io through npm, and inside socket.io/lib/ is socket.io.js file. However, this is server-side (uses the phrase require(), which errors on the client).

I have spent an hour looking around and I can't get any client .js file to work.

What am I missing?

网友答案:

I managed to eventually answer this for myself.

The socket.io getting started page isn't clear on this, but I found that the server side of socket.io automatically hosts the .js file on starting node, in the directory specified in the documentation:

"/socket.io/socket.io.js"

So you literally just point to this url regardless of your web app structure, and it works.

网友答案:

I would suggest checking if your node_modules directory is at the top level of your app directory. Also, I do believe you need to specify a port number; you should write something like var socket = io.connect('http://localhost:1337');, where the port number is 1337.

网友答案:

Here you can find CDN for various versions.

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