By Sandro Pasquali
Utilizing the JavaScript language , this e-book will provide help to simply construct scalable community software program with Node.js. You'll study via sensible examples and transparent reasons each step of how.
Overview
• grasp the most recent concepts for development real-time, significant facts purposes, integrating fb, Twitter, and different community services
• Tame asynchronous programming, the development loop, and parallel info processing
• Use the explicit and direction frameworks to hurry up improvement and convey scalable, better caliber software program extra quickly
In Detail
Node.js is a contemporary improvement stack keen on delivering an ideal way to construct scalable community software program. subsidized by way of an increasing number of huge businesses and a quickly expanding developer base, Node is revolutionizing the way in which that software program is being equipped at the present time. Powered by means of Google’s V8 engine and equipped out of C++ modules, this can be a JavaScript atmosphere for the firm.
Mastering Node.js will take the reader deep into this intriguing improvement setting. starting with a finished breakdown of its cutting edge non-blocking evented layout, Node’s constitution is defined intimately, laying out how its blazingly quickly I/O functionality simplifies the construction of quickly servers, scalable architectures, and responsive internet functions.
Mastering Node.js takes you thru a concise but thorough travel of Node's leading edge evented non-blocking layout, exhibiting you ways to construct expert functions with assistance from designated examples.
Learn tips on how to combine your functions with fb and Twitter, Amazon and Google, developing social apps and courses attaining hundreds of thousands of collaborators at the cloud. See how the explicit and course frameworks make the construction internet functions painless. arrange one, , or a whole server cluster with quite a few strains of code, able to scale once you’re able to release. circulation information seamlessly among databases and dossier platforms, among consumers, and throughout community protocols, utilizing a fantastically designed, constant, and predictable set of instruments.
Mastering Node.js includes all the examples and factors you’ll have to construct functions in a quick period of time and at a affordable, working on a scale and pace that may were approximately most unlikely quite a few years in the past.
What you are going to examine from this book
• observe how Node makes use of Google’s V8 engine to create high-speed JavaScript at the server
• Use occasions to create non-blocking platforms with excessive throughput
• Create safe servers throughout all significant community protocols
• deal with hundreds of thousands of concurrent consumers with out slowing down
• deal with information, documents, and protocol streams with ease
• Leverage Node’s module approach to layout sane purposes which are effortless to extend
• Optimize and debug server-side JavaScript for elevated performance
• research scaling options and parallelize operations throughout a number of cores
Approach
Packed with functional examples and reasons, learning Node.js comprises every thing you want to take your purposes to the subsequent point.
Who this ebook is written for
If you’ve ever outfitted an internet web page and wish to construct community software program utilizing the language and magnificence you understand, Node will make that technique uncomplicated, or even enjoyable. in the event you comprehend what a server is, what a consumer is, and the way to put in writing JavaScript, you're already midway to gaining knowledge of Node.js!
Read or Download Mastering Node.js (Community Experience Distilled) PDF
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Extra info for Mastering Node.js (Community Experience Distilled)
Example text
LAST STAT (H). 8. IMMEDIATE (E). 9. LONG TIMER (D). Let's break the preceding code down: A, F, and I execute in the main program flow and as such they will have the first priority in the main thread (this is obvious; your JavaScript executes its instructions in the order they are written, including the synchronous execution of the emit callback). With the main call stack exhausted, the event loop is now almost reading to process I/O operations. This is the moment when nextTick requests are honored slotting in at the head of the event queue.
Argv contains useful command information, including command-line arguments commencing at index(2), which in this case would contain "my message". UDP requires messages to be Buffer objects, so we ensure that some message exists and convert it. A UDP server is an instance of EventEmitter, emitting a message event when messages are received on the port it is bound. This server simply echoes the received message. All that is left to do is send the message, which action is performed by the client, passing along our message to port #41234.
Building pyramids Simplifying control flows has been a concern of the Node community since the very beginning of the project. Indeed, this potential criticism was one of the very first anticipated by Ryan Dahl, who discussed it at length during the talk in which he introduced Node to the JavaScript developer community. Because deferred code execution often requires the nesting of callbacks within callbacks a Node program can sometimes begin to resemble a sideways pyramid, also known as "The Pyramid of Doom".