Node is undoubtedly a widely used programming language among today’s programmers!
Node or Node.js has its pros and cons, but unlike other technologies, Node is undeniably a powerhouse. It is widely utilized by a number of influential companies, such as Uber, LinkedIn, and PayPal.
Now that we know Node is a trending topic to talk about, where to begin is the question. Relax, take a big breath! We’re going to walk you through the basics of node one by one in this article. Let’s start with the basics, what is Node.js?
What is Node.js?
When it comes to Node basics, we should firstly know first what is a Node and what it is not!
Writing an HTTP server is required if you want it to function as a server for HTTP (with the help of its built-in libraries). Node.js is frequently used to create back-end services for mobile apps, web apps, and APIs.
Datatypes of Node.js
Features of Node.js
When we talk about Node basics, we cannot deny the fact that this rich invention comes with multiple features and they are as follows:
- It is simple to get started with
- Great for agile development and prototyping.
- Offers quick and highly scalable services
- The source code is consistent
- The open-source library is vast
- Asynchronous nature
Where can Node.js be used?
There are multiple reasons for which you use Node but following are some of the reasons Node.js can be used for,
- I/O bound Applications
- Data Intensive Real-time Applications (DIRT)
- Data Streaming Applications
- Single Page Applications
- JSON APIs based Applications
Let’s move to the other essential concept of Node basics.
Node and Callback
Callbacks which are asynchronous equal to a function are heavily utilized by Node. Every single API supports the callbacks. To understand it clearly, a function to read a file might begin reading the file and then immediately return control to the execution environment so that the following instruction can be carried out. It will call the callback function after the file I/O is finished and pass the callback function the file’s content as a parameter.
Node and Events
Node.js makes extensive use of events, which is also one of the factors that contribute to its relative speed when compared to other related technologies. Node simply initiates its variables, declares its functions, and then waits for the event to happen once the server has started.
An event-driven application typically has a main loop that monitors for events and activates a callback function when one is found. Even though callbacks and events have a similar function, callback functions are called when an asynchronous function returns its result, whereas event handling uses the observer pattern.
Advantages of Node.js
Since the release of Node.js in 2009, it has gained popularity. Even it is expected to be going the same way in the coming years, it is full of remarkable advantages which makes it one of the most highly demanded programming languages.
Let’s discuss on a few of its advantages:
When it comes to speed, Node.js is pro at it as Node.js runs on the Google-developed V8 engine. Node.js event loop manages all asynchronous operations, handles things such as reading from or writing to files, and databases rapidly. The fast suite of Node.js is a major plus.
Learning Node is easy
Full Stack js
Thanks to Node, full stack web development has become so popular. What is a full stack? When a single developer handles all facets of a programme, including front-end development, back-end development, database administration, etc., that is referred to as full stack web development. Before the creation of Node, full stack developers had to learn several languages. But now, Node is all enough.
Node.js has scalability built right into its foundation. Node.js makes it simple to add new modules to already-existing systems while also enabling the development of light, quick systems with good real-time response. Moreover, one can also add more resources when the application is scalable.
Real-time web apps
As Node.js has faster synchronization, it is the best fit to use in developing real-time web apps. Node.js development is also protected from HTTP overload due to the event loop which is an add-on to app creation.
Node.js offers the benefit of caching a single module. The first module is cached in the application memory so that you don’t have to run the code again whenever the first module is requested.
The community of developers who are a fan of Node.js are always active and up there to support other developers in times of need. If you need any help, the vibrant community would help you out.
We hope our article showing Node basics has helped you to find some valuable new information. If you’re planning on studying Node, there are various online sources available for you to make use of. Happy coding!