WHAT IS NODE.JS?
- It’s open source and cross-platform.
WHAT IS NODE.JS USED TO BUILD?
On the other hand, it’s important to remember that the single-thread, multi-process approach can run into a different bottleneck at higher per request latencies (greater than 2,000 simultaneous requests a second)—the speed difference between IPC (interprocess communication) used by Node.js and communication between multiple threads becomes more noticeable. For truly data-intensive, real-time applications, you may want to choose a database system based on a language that better optimizes threading, like Java.
The popularity, ease-of-use, and speed of Node.js is perfect for most general web server applications, especially in situations where the speed with which you can add a new feature trumps the need to squeeze out additional performance from an application that is already fast enough to meet your needs. This leads to fast, efficient server programs that aren’t slowed down by traditional bottlenecks.
THE EXPRESS.JS FRAMEWORK & THE KOA.JS FRAMEWORK
SO, WHAT MAKES NODE.JS SO EXCELLENT (AND EFFICIENT) FOR BACK-END PROGRAMMING?
Two words—programmer productivity. While other server-side technologies have their own means of creating dynamic, asynchronous web servers, Node.js is simply easier to use. At a glance, it’s similar to back-end platforms powered by PHP, Java, and Python, but Node.js solves for speed issues in a few key ways that result in less programming overhead for the developer. A few sites that use Node.js include: PayPal, LinkedIn, Groupon, Walmart, Yahoo!, Intuit, and Voxer. Here’s a quick look at six of its advantages:
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