Download Node: Up and Running: Scalable Server-Side Code with by Tom Hughes-Croucher, Mike Wilson PDF

By Tom Hughes-Croucher, Mike Wilson

This ebook introduces you to Node, the recent net improvement framework written in JavaScript. You'll study hands-on how Node makes existence more straightforward for knowledgeable JavaScript builders: not just are you able to paintings at the entrance finish and again lead to an analogous language, you'll even have extra flexibility in settling on easy methods to divide software good judgment among consumer and server.

Written through a center contributor to the framework, Node: Up and Running exhibits you the way Node scales as much as aid huge numbers of simultaneous connections throughout a number of servers, and scales right down to allow you to create fast one-off purposes with minimum infrastructure. outfitted at the V8 JavaScript engine that runs Google Chrome, Node is already profitable the hearts and minds of many businesses, together with Google and Yahoo! This publication indicates you why.

• comprehend Node's event-loop structure, non-blocking I/O, and event-driven programming
• notice how Node helps a number of database and knowledge garage tools
• study most sensible practices for writing easy-to-maintain code for Node
• Get concrete examples of the way to exploit many of the Node APIs in practice
• reap the benefits of the book’s whole API reference

Show description

By Tom Hughes-Croucher, Mike Wilson

This ebook introduces you to Node, the recent net improvement framework written in JavaScript. You'll study hands-on how Node makes existence more straightforward for knowledgeable JavaScript builders: not just are you able to paintings at the entrance finish and again lead to an analogous language, you'll even have extra flexibility in settling on easy methods to divide software good judgment among consumer and server.

Written through a center contributor to the framework, Node: Up and Running exhibits you the way Node scales as much as aid huge numbers of simultaneous connections throughout a number of servers, and scales right down to allow you to create fast one-off purposes with minimum infrastructure. outfitted at the V8 JavaScript engine that runs Google Chrome, Node is already profitable the hearts and minds of many businesses, together with Google and Yahoo! This publication indicates you why.

• comprehend Node's event-loop structure, non-blocking I/O, and event-driven programming
• notice how Node helps a number of database and knowledge garage tools
• study most sensible practices for writing easy-to-maintain code for Node
• Get concrete examples of the way to exploit many of the Node APIs in practice
• reap the benefits of the book’s whole API reference

Show description

Read or Download Node: Up and Running: Scalable Server-Side Code with JavaScript PDF

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Additional info for Node: Up and Running: Scalable Server-Side Code with JavaScript

Example text

Hi! Hello, yourself This time, the server isn’t logging any messages it receives, and instead we loop through the array and send them back to the clients. Notice that when the Telnet client in terminal 2 sends a message, it gets sent to the Telnet client in terminal 3, but it also gets sent back to Telnet in terminal 2 as well. This is because when we send the message, we aren’t checking who the sender was; we just send to our entire array of clients. It’s also not clear just by looking at Telnet which messages were things we sent and which were things we received.

0, AJAX websites have become part of the battleground. Each browser has its own JavaScript runtime: Spider Monkey for Firefox, Squirrel Fish Extreme for Safari, Karakan for Opera, and finally V8 for Chrome. As these runtimes compete on performance, it creates an environment of innovation for JavaScript. And in order to differentiate their browsers, vendors are going to great lengths to make them as fast as possible. js CHAPTER 2 Doing Interesting Things The programming trends of the last few years have made it progressively easier to write more complex applications with ease.

Send({status:"nok", message:"No tweet received"}) } }) Much of this code is the same as Example 2-10, but now we have a check for whether the accept header asks for text/html. redirect command. We use a 302 status code because this isn’t a permanent move. Instead, we want the browser to still go to /send each time before redirecting. js and JavaScript in general. Understanding the decisions and trade-offs will make it easier for you to write great code and architect your systems. js is different from other systems they’ve used and where the performance gains come from.

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