![]() ![]() Node.js’s package ecosystem, npm, is the largest ecosystem of open source libraries in the world.Įran Hammer announced at NodeDay that Walmart is planning to use Node.js across all eCommerce by the end of 2014. It is backed by a huge community and sponsored by big corporate Joyent The old story of LinkedIn was moving to Node.js from Rails for their mobile traffic, reducing the number of servers from 30 to 3 (90% reduction) and the new system was up to 20x faster. Similarly, Groupon re-implemented their system in Node.js which resulted in page load times dropping by a whopping 50%. On Black Friday the Walmart servers didn’t go over 1% CPU utilization and the team did deploy with 200,000,000 users online. The team at Walmart Labs live-tweeted against the #nodebf tag showing the performance of the Node.js application. Walmart Labs had a bumper launch with Node.js in 2013, where they put all of their Mobile traffic through Node.js on black-friday, the busiest shopping period of the year. PayPal reported: double the number of requests per second and reduced response time by 35% or 200 milliseconds. Monitoring & Profiling of application is very using various Process manager available in Node.js High-Performance You can easily build a real-time application using the most widely used “Socket.io” library in Node.js Easy to build Real-Time Application & Monitoring Even the granddaddy of PaaS, Heroku, now formally supports Node deployments. In particular, Platform-as-a-Service (PaaS) providers such as Modulus and others reduce deployments to a single command. With rapid adoption, world-class Node.js hosting is also proliferating. Node.js makes it possible for you to take advantage of everything Javascript has to offer without being tied to a browser. The way Node.js handles event-driven programming makes it helpful for handling things like streams and sockets and very large files.Īs Node.js is non-blocking, which makes less-than-expert programmers are able to develop scalable applications. Almost no function in Node directly performs I/O, so the process never blocks. Furthermore, users of Node are free from worries of dead-locking the process-there are no locks. Thread-based networking is relatively inefficient and very difficult to use. Node.js is in contrast to today’s more common concurrency model where OS threads are employed, uses event-driven programming. Why any body should go with Node.js (Advantages of Node.js)? ![]() Instead of this object, Node.js has introduced a “global” object which holds the global stat across one Node.js process. ![]() These objects are not available in Node.js because the Node.js application works on the server-side and does not have to deal with UI and URL handling. Node.js is having some more functions added to it and has removed some of the functions and objects that are available in Google Chrome. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient. Node is actually based on the V8 JavaScript run time from Google Chrome. Node wasn’t just built from scratch, it came from another project. Node is just JavaScript without a browser. In this post you will learn and get familiar with the following things: This blog post is based on the meetup conducted by me on how anyone can start working and building basic Node.js applications in 90 minutes. The first thing to specify in the application is “view engine” that will be used to render the templates.I am writing this blog to help beginners learn and start developing Node.js applications.In our example, if a request is made through the browser on this port number, then server application will send a ‘Hello’ World’ response to the client. ![]() Our application is going to create a simple server module which will listen on port number 3000. Let’s use our newly installed Express framework and create a simple “Hello World” application. The above command requests the Node package manager to download the required express modules and install them accordingly. This can be done by executing the following line in the command line Installing and using ExpressĮxpress gets installed via the Node Package Manager. The Express.js framework makes it very easy to develop an application which can be used to handle multiple types of requests like the GET, PUT, and POST and DELETE requests. 3) Angular.js – The JavaScript MVC framework used for web applicationsĤ) Node.js – Framework used for scalable server-side and networking applications. ![]()
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