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. Append (_TPL); Wchat_tobottom (); }});// ... File Selection window$ ("#J__chooseFile"). On ("Change",function () { $(". Wc__choose-panel"). Hide (); varFile = This. files[0], Filesuffix =/\. [^\.] +/.exec (File.name). toString (), Fileext = Filesuffix.substr (Filesuffix.indexof ('. ') + 1, Filesuffix.length). toLowerCase (); Console.log (Fileext); varFiletypearr = [' jpg ', ' jpeg ', ' png ', ' gif ', ' txt ', ' rar ', ' zip ', ' pdf ', ' docx ', ' xls ']; if($.inarray (Fileext, Filet

Socket.io Online chat Room The Nodejs series of articles from scratch will introduce how JavaScript can be done as a server-side script through the NODEJS Framework web development. The NODEJS framework is a V8 based engine and is the fastest JavaScript engine at the moment. The Chrome browser is based on V8, and it's fluent to open 20-30 pages. The NODEJS standard Web development framework, express, can he

Microsoft Mail Service outlook.com recently integrated Google Google Talk features, so that users in the Outlook.com page can directly and Google Talk friends chat. This feature will be available to global users in the next few days. This new feature supports multiple applications on the Outlook.com page, such as Inbo

has left; 3. Displays online personnel columns in real time; 4. No database support is required, and all data is stored in the memory. Of course, if conditions are met, you can use distributed cache or add a database to store the data. Here we use the memory to store the data. Next I will share my code. Because the native JS and AJAX are used, it is easy to understand. The code is WEB Front-end and server-

ObjectiveThe previous article briefly explained the use of Redis to cache online user Logic. Space is also relatively small, this article will be in detail to realize the User's offline notification, image effect conversion Function. In addition, the code and development ideas will be described in Detail.Effect ShowThere are currently three users, user1,user2,user3. will simply show the user on-line, offline message push Effect.Figure One: User 1 logi

changes the group to which a friend belongs.3. Tray flashing: Similar to QQ, when a message is received, the tray will flash the avatar of the corresponding friend. Click the avatar to bring up a chat box with friends.4. Logon status: online, left, busy, do not disturb, and invisible. When you modify your status, you can view your latest status synchronously.5. Dynamic expressions: the

On-line chat room (online chatrooms) is a total number of people to communicate the network platform, with more and more new technology inventions and mature use, online chat room also appears to use a variety of different technologies, this article I would like to summarize briefly. First of all, the front desk techn

server processes the message, it needs to parse the recipient UserID from info, and then call Multidevicehelper's Getloginidlist method to get loginID for each device type, and then The server is sending the message to every loginid. In this way, both the mobile phone and the PC end will receive this chat message.For information on how to use the Esframework communication framework, refer to the Esframework development manual.How to achieve in the in

Simple online chat room based on Server-Sent Event, server-sentevent WebInstant Messaging The so-called instant Web communication means that we can use a mechanism to immediately notify users of one thing on the webpage without refreshing the webpage. Web instant messaging is widely used, such as real-time chat and instant push. For example, if someone answers ou

sse or websocket sse The full name is server Send Event if sse is not enough to meet our needs, we can use the websocket > Yes. When using websocket TCP socket same. sse Span style= "font-size:16px;font-family: ' The song Body '; > and websocket websocket is a full-duplex channel that can communicate in two directions and is more powerful; SSE is a one-way channel and can only be sent to the browser by the server. websocket is

Source: Tianji yesky Whether you have been using the instant messaging program for a while or have just decided to try the instant messaging program, you should understand some knowledge that can help protect yourself and your private information security.When people frequently use QQ, MSN, and other chat tools as communication tools for daily work and life, the security of the password, personal information, and