Construct real-time cross-browser applications based on WebSocket-

Socket. IO is a powerful framework that helps you build real-time applications across browsers Based on WebSocket. Supports mainstream browsers, multiple platforms, and multiple transmission modes. You can also combine the Exppress framework to build complex real-time applications with various functions ....,. Socket. IO is a powerful framework that helps you build real-time applications across browsers Based on WebSocket. Supports mainstream browsers, multiple platforms, and multiple transmission modes. You can also combine the Exppress framework to build complex real-time applications with various functions.

Example

1. Use the Node HTTP Server

Server Sample Code:

Var app = require ('HTTP '). createServer (handler)

, Io = require ('socket. io '). listen (app)

, Fs = require ('fs ')

App. listen (80 );

Function handler (req, res ){

Fs. readFile (_ dirname + '/index.html ',

Function (err, data ){

If (err ){

Res. writeHead (500 );

Return res. end ('error loading index.html ');

}

Res. writeHead (200 );

Res. end (data );

});

}

Io. sockets. on ('connection', function (socket ){

Socket. emit ('new', {hello: 'World '});

Socket. on ('My other event', function (data ){

Console. log (data );

});

});

Client sample code: