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Web Application Development with MEAN by Robert Onodi, Adrian Mejia, Amos Q. Haviv

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Introducing Socket.io

Created in 2010 by JavaScript developer, Guillermo Rauch, Socket.io aimed to abstract Node.js' real-time application development. Since then, it has evolved dramatically, released in nine major versions before being broken in its latest version into two different modules: Engine.io and Socket.io.

Previous versions of Socket.io were criticized for being unstable, since they first tried to establish the most advanced connection mechanisms and then fallback to more primitive protocols. This caused serious issues with using Socket.io in production environments and posed a threat to the adoption of Socket.io as a real-time library. To solve this, the Socket.io team redesigned it and wrapped the core functionality in a base module ...

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