javascript Socket.IO 客户端 .js 文件在哪里？
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Where is the Socket.IO client-side .js file located?
提问by dthree
I am trying to get socket.io (Node library) to work.
我正在尝试让 socket.io（节点库）工作。
I have the server-side js working, and it is listening. The socket.io website states simply:
我有服务器端 js 工作，它正在侦听。socket.io 网站简单地说明：
<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!?!
这很好，但是，我要导入什么 JS 文件！？！
I went into the node_modules directory, where I installed socket.io through npm, and inside socket.io/lib/is socket.io.jsfile. However, this is server-side (uses the phrase require(), which errors on the client).
进入node_modules目录，通过npm安装socket.io，里面socket.io/lib/是 socket.io.jsfile。但是，这是服务器端的（使用短语require(), which errors on the client）。
I have spent an hour looking around and I can't get any client .js file to work.
我花了一个小时环顾四周，但无法让任何客户端 .js 文件工作。
What am I missing?
我错过了什么？
回答by dthree
I managed to eventually answer this for myself.
我最终设法为自己回答了这个问题。
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 入门页面对此并不清楚，但我发现 socket.io 的服务器端自动将 .js 文件托管在起始节点上，在文档中指定的目录中：
"/socket.io/socket.io.js"
So you literally just point to this url regardless of your web app structure, and it works.
因此，无论您的 Web 应用程序结构如何，您都只需指向此 url，它就可以工作。
回答by Shrey Gupta
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.
我建议检查您的 node_modules 目录是否位于应用程序目录的顶层。另外，我相信您需要指定一个端口号；你应该写一些类似的东西var socket = io.connect('http://localhost:1337');，端口号在哪里1337。
回答by OrangeDog
The client is available in a few ways:
客户端可通过以下几种方式使用：
- supplied by the socket.io server at
/socket.io/socket.io.js - included via webpack as the module
socket.io-client - via the official CDN
https://cdnjs.cloudflare.com/ajax/libs/socket.io/<version>/socket.io.js
- 由 socket.io 服务器提供
/socket.io/socket.io.js - 通过 webpack 作为模块包含
socket.io-client - 通过官方 CDN
https://cdnjs.cloudflare.com/ajax/libs/socket.io/<version>/socket.io.js
For the first one, the server can be configured in a couple of ways:
对于第一个，可以通过两种方式配置服务器：
// standalone
var io = require('socket.io')(port);
// with existing server from e.g. http.createServer or app.listen
var io = require('socket.io')(server);
回答by Anshul Bisht
If you did npm installthen the client socket.io file is located at node_modules/socket.io-client/dist/socket.io.js
如果您安装了npm，那么客户端 socket.io 文件位于node_modules/socket.io-client/dist/socket.io.js
