Things You Should Know About Node.js to Be a Pro

node js

Node.js is a cross-platform, open-source runtime environment for creating server-side and networking applications. It is possible to execute Node.js apps on OS X, Windows, and Linux by writing them in JavaScript.

It is a network application development platform based on Chrome’s JavaScript engine. Event-driven, non-blocking I/O makes Node.js lightweight and efficient. It is also ideal for real-time applications that operate across multiple devices, such as streaming data.

It can develop various applications, including command-line programs, web apps, real-time chat applications, and REST API servers. However, similar to PHP, Java, or ASP.NET, it is primarily used to develop network programs such as web servers.

How does Node.js work?

Node.js has three primary features:


It is a single-threaded application. It may seem like a bottleneck, but that method is worth considering since it eliminates the need for users to transfer between different factors.

Non-blocking I/O

In the event loop, only one thread is active at a time. Long-running operations like network I/O and data access are always performed asynchronously on top of worker threads that send the results to the event loop thread through a callback. That provides us with a non-blocking, asynchronous method of managing code execution.

Event Loop

The Event Loop is based on this library since “libuv” (the core engine that powers Node.js) is responsible for queuing and handling asynchronous events. The event loop manages a queue of events and their associated callbacks. For example, when a client delivers a request, Node.js server requests are queued up and processed by the event loop.

Other Features of Node.js

Here are some other features of node.js you will find fascinating.

Open Source

A large community supports the MIT license of Node.js, which is an open-source framework. Its community is quite active and has contributed to introducing new apps.

Simple and Fast

Fast code execution is possible because it is based on Google Chrome’s V8 JavaScript Engine.

High Scalability

Because of the event system, it is very scalable and assists the server in a non-blocking response.


The Node.js libraries are all asynchronous, which means that the Node. js-based servers do not have to wait for an API response before moving on to the next one.


You can swiftly build and deploy Node.js applications on Windows, Linux, and Mac operating systems.

No Buffering

One of the essential features of Node.js apps is that they never cause any buffers.

Things You Should Know about Node.js

Ryan Dahl created Node.js in 2009. With the start of this system, a vast option of new APIs become available to programmers. In addition, JavaScript real-time web APIs must be developed while using Node.js. However, if you are already familiar with JavaScript, picking up Node.js will not take long. The popularity of Node.js is constantly increasing.

It provides an extensive list of benefits and helps with multiple factors. Knowing them might be a great head start to the way of becoming a pro.

JavaScript Supports Node.js

Suppose you are planning on creating a variety of web browser apps. If this is the case, you must dedicate time to learn about it. JavaScript also supports the Node.js event loop technique. It allows us to operate seamlessly on whichever operating system we choose. Let us not forget about web scraping as well. Cheerios and Axios, two Node.js modules, are very helpful for JavaScript web scraping.

It has an Extensive Library

You can find a vast collection of Node.js dependencies via the Node Package Manager (NPM). It facilitates the growth of the node ecosystem by providing us with easy-to-use package management. Developers working on smaller projects can take advantage of better packages explicitly created for those projects and made public by those same developers, generating better results. It will also be a lot easier to implement Node.js this way.

Smaller Modules, Faster Output

In general, we can refer to “Node.js application” and “Node.js Core” as two submodules of the larger Node.js framework. However, it is not always needed, even though it is possible to utilize these two together at the server or client end. Thus, it is lighter with the core and application not being included in all locations collectively. Due to these advantages, several businesses have stepped forward to use its development services.

Node Package Manager (NPM)

For handling library dependencies, the Node Package Manager should be called out. Nearly all Node.js deployment solutions are built upon Node Package Manager. PaaS (Platform as a Service) providers for Node.js use it as the backbone for moving small apps between them. The Node ecosystem has grown tremendously because of its easy and reliable package management. However, the underlying public service has to be scaled to the next level.

JSON Reinforces Node.js

As a JavaScript developer, you should be familiar with JSON (JavaScript Object Notation), a vital language component. Accessible data interchange format JSON is available to everyone. People can easily create APIs that support Node.js using JSON. It must be utilized in conjunction with JavaScript, as it has not been in the past. Even if we utilize the framework, we still need to translate this to JSON.

JSON is a powerful and easy-to-use data communication format for programmers. In JavaScript, it is a staple since it is easy to use and helps developers design APIs rapidly. Previously, JavaScript programmers had to maintain additional caution when working with dynamic data in the browser. For example, a JS-only NoSQL database can appear due to JSON.

Powered by Google 

On the back-end, it is powered by Google’s V8 engine. The front-end JavaScript execution in Google Chrome requires the same amount of runtime. Compared to sophisticated JavaScript, the Node.js runtime developed by Google is the quickest and most dynamic. 

In addition, Node.js is included in Google’s list of system engine capabilities. Furthermore, developers can use Google Developer Tools to debug Node.js, eliminating mistakes in their applications’ front-end and the back-end.

Helpful for Buffering and Streaming

ArrayBuffer is a JavaScript feature, and streams are common in Node.js. As a result, the majority of them are “stream-based.” Many people have a hard time understanding streams. People who are new to this typically find them challenging to understand.

It is a crucial topic in Node that you should become well-versed in. When discussing streams, it is impossible to avoid bringing up terms like buffer, ArrayBuffer, pipe, and backpressure. In addition, there are various stream kinds, such as writable/readable/transform/duplex, that must be learned. The single-threaded server-side architecture of Node.js necessitates streams, allowing fast and efficient data transport.

Provides Inbuilt File System Module

You will have to interact with files on the server side by reading, writing to, or gathering data about them. Because of this, mastering and understanding the file system module is a must.

Data such as permissions, names, and sizes must be collected, so you must be comfortable performing CRUD operations on files and folders. Using the File System also requires familiarity with streams and events, which are fundamental to working with the File System.

Better Package Management

The Node.js community’s package management is one of the most dynamic aspects. It comes with an NPM CLI tool, although several bugs have plagued it for years. Many of the problems with NPM were addressed by the Yarn (a package modifier for Node.js).

On the other hand, the competition encourages creativity, and NPM has not only rectified the problems with Yarn’s package management but has gone above and beyond it. Even if you are unsure which one you should use, having some familiarity with a package management system in Node.js is a must-have.

Plenty of Instrumentation

You can reproduce these scripts using various tools available for varied production purposes. We can even simulate a server and client environment for an application. As Node.js is continuously developing, you can expect to access even more features in the near future.

Sharing is Free

You will have access to knowledgeable associates who are happy to share their expertise, making it simple to ask questions and learn from others’ experiences. This is a time-saving resource for beginners and even for experienced developers to focus on other projects.

HTTP Module

The most common usage of Node.js is to build server-side applications. For example, a web server that can reply to requests from clients can be created using the module. In addition, there are modules like HTTP and HTTP/2 that help Node.js handle server requests quite easily.

Express.js Framework

Express.js is a Node.js framework for server-side applications that makes it easier to control data flow between different routes and servers. This lightweight and adaptable framework provides various functionalities necessary for creating online and mobile applications.


As you can see, node.js is an excellent tool that has shown exemplary performance in many circumstances. In addition, the collection of Node.js application examples are pretty extensive, and your project may very possibly profit from employing this technology. There is also a thriving community of Node.js developers actively improving the platform. As a result, it will be the perfect choice for all scenarios. Good Luck!

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