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Sams Teach Yourself Node.js in 24 Hours by George Ornbo

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Hour 1. Introducing Node.js

What You’ll Learn in This Hour:

• What Node.js is and why it was created

• Examples of applications that you can create with Node.js

• Creating and running your first Node.js program

What Is Node.js?

On November 8, 2009, Ryan Dahl delivered a speech to jsconf.eu, a conference on JavaScript, introducing Node.js to the JavaScript community. He had become frustrated that concurrency (doing more than one thing at once) is difficult in many programming languages and often leads to poor performance. He wanted to make it easier to write networked software that is fast, supports many users, and uses memory efficiently. So he created Node.js.

Around the same time that Ryan Dahl was exploring ways to approach the problem, ...

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