If that sounds exciting to you, you’re in for a lot, because that’s just the beginning. But, just because Node.js is popular and has some groovy features doesn’t mean you’d need to learn it. What’s in it for you?
Okay, we agree that trying to understand Node.js from just its definition is complex. What do we mean by a runtime environment, anyways? Well, for keeping things real, Node.js is a technology. Yes, that’s right, so much more than a framework or a language; and there’s a good reason why:
- The asynchronous design makes Node faster, as the program doesn’t have to wait for database operations processing, and instead can manage numerous tasks thrown into its way. Furthermore, the V8 engine that powers Google Chrome is also the one used in Node.js implementation, and because of Google’s performance benchmarks, Node.js delivers speed and accuracy. Thanks to its event-driven APIs programmed in common language at both server and client sides, the synchronization takes place quicker and is preferred by online gaming, video conferences, chats, etc.
Reasons Why Node.js preferred for Web Developer Jobs
- Remember how we discussed that Node.js is great for multitasking? It’s because of its ability to manage concurrent requests, without wearing out the server – something that organizations want right now. This occurs because Node.js only comes online when needed otherwise it goes to sleep, saving any usage of RAM unless required.
- The cross-platform and mobile-friendly aspect of Node.js works great across Linux, Windows, and macOS, with little or no modifications being made, making it light and fast.
Learning Node.js: Getting Started
Begin with the fundamentals like scopes, functions, classes, callbacks, promises, and the performing abilities of String, Objets, Arrays, Numbers, Sets, Maps, etc. Once that and more are out of your way, you can really get deeper into focusing on Node.
Step#2 Node – What’s with its name?
You’d realize that the reason why Node is named as such plays a huge role in its operations, and even more its capabilities. Once combined with good networking protocols it becomes a foolproof system to develop scalable, distributed programs.
Step#3 Knowing blocking and non-blocking operations
One of the first things you’d realize in your learning journey is that in Node all blocking operations are a real nuisance here. However, once you figure out the asynchronous I/O protocols in the lines of code, add the right functions and callbacks, and its execution – you’re set for the next level.
Step#4 Enter Event Loop
Among the other details of Node, the queue in the event loop is triggered for the next message and as soon as it arrives, the callback for the message gets executed. Here’s an illustration of the loop:
Step#5 Keeping up with the Global Variables
Step#6 Using Libraries within Node
One of the pre-final stages of writing code for Node is learning the process behind running a TCP server and program sockets by accessing ‘net’, reading and writing files with ‘fs’, or even the task of running a stream-ready web server with ‘HTTP’, etc.
Step#7 Code Writing for Node & without using any framework
It’s always a good call to go through and understand code on different frameworks before actually writing the code yourself. In this case, you can begin with observing codes on Express and analyzing more codes on Node to make yourself comfortable and familiar.
Apart from self-study, for a beginner, it’s also recommended that in order to get a headstart in today’s tech space, having relevant course certifications, and projects is essential. You can also opt for learning in a community of Node.js developers, be it online or in your area. This opens doors to interactive lesson experiences as well as collaborative projects in the long run.
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We hope this article was helpful to you in understanding a few things about Node.js. In case you’d want to stay in tune with more Node.js updates, we’d recommend following the official Node.js blog. Happy learning!