Good and bad of Node.js Web App Development

Node JS Popularity is gaining day by day. People often search for Node.js MCQ to crack the interview. They are ofte asked about advantages of Node.js or disadvantages of node.js or features of Node.js. They are often asked to site an example of Node.js. Node.js is a framework and node.js web application is made to fulfill specific task on the client's website.

Node.js or node is a cross-platform runtime and open-source environment that uses JavaScript code for execution. Nodes are often used outside of a browser to build back-end services, also called APIs or application programming interfaces.

These services power client applications, like a web app running inside a web browser or a mobile app running on a mobile device. These client apps are what users see on the device and interact with; they're just the surface they need to talk to some services sitting on the server.

Even in the cloud, they interact to send emails or push notifications, save information, kick-off workflows, and so on. Node is ideal for building real-time back-end services and highly scalable data-intensive that enable our clients to interact.

What are the unique features of node.js?

Node is easy to start and can be used for prototyping, but You can also use it for agile development. You can also use it to build highly scalable and fast services; it's used in production by large companies such as PayPal, Netflix, Uber, etc.

A Nodejs developer built a node application twice as fast with fewer people in 33% fewer lines of code and 40% fewer files. More importantly, they doubled the number of requests served per second while decreasing the average response time by 35%. So a node is an excellent choice for building highly scalable services. Another reason for using nodes is that in node applications.

We use JavaScript, so if you're a front-end developer and know JavaScript, you can reuse your JavaScript skills and be a full-stack developer and get a better job with better pay. You also don't have to learn a new programming language because you can use JavaScript both front and back.


Your source code will be cleaner and more consistent so that you will use the same best practices. Finally, another reason for using node is that it has the largest ecosystem of open source libraries available to you so far.

There are many features or building blocks you want to add to your application. There are some free open source libraries out there that you can use, so you don't have to build these building blocks from scratch; instead, you can focus on the core and focus on the core of your application.

Good and bad of node.js web application

Node.js has a specific set of slightly different characteristics from some of the other similar side application platforms. So, in this article, I will cover the good and bad of node.js web Application development because those characteristics of node.js are related explicitly to how threading and concurrency work with node.js.

Node.js does have the concept of worker threads, so this is not always true. But it helps to think of Node.js as single-threaded anyway since there is only one "application" thread available.

Here is the kind of problem that node.js shines in. If you were to have these kinds of problems you can use node.js

● Non-blocking

● Event-driven

● Data-intensive

● I/O intensive

If you are applying node.js, you're building your applications in node.js. You don't have a good time, so the kind of problems is if it's non-blocking applications, if it's event-driven, if it's data-intensive if it's input-output intensive, just the same thing you have. You're waiting for an external system to do something, and you're interacting with external systems.

So, this is where node.js shines, to understand. It's essential to understand one crucial aspect of node.js that it is single-threaded.

What does a single-threaded mean?

It means that all the execution in a node.js environment is carried out by one computer thread by one processing thread. Many people find it hard to know how one processing thread might work, and they think it will block everything.

So this is very different from other similar programming platforms, which are multi-threaded. We have multiple threads operating at the same time, and that's not what happens in node.js. In node.js, you have a single thread and what it does is runs through a queue of events.

Let's say you have something that needs to be executed, and you have written a function. So, some computation needs to happen. Here, what happens is the things that need to execute queues up, and there is a queue of events that happens. Then the single processing thread executes each event one by one in that queue, and it continues to execute other events, but there is no parallel execution.

The way it works is dependent on a thing called the Event Loop. The event loop is a fundamental concept that has very close ties to JavaScript. You see an event loop in a browser and an event loop in the node.js platform. It's the loop of execution, where it looks at the queue, picks the event and executes it, then picks the next one. If any new event comes up, it goes back to the queue to execute.

Pros

● The first pro of node.js is how iterative it is, and you have a use case where you built out some application.

● You remember the show statistics on how you were answering users much faster because you switched over nodes.

● It is a real asynchronous event drive that helps with concurrent requests.

● Another pro you can also reuse nodes potentially in the server.

● The proof node is that you have a lot of support.

● They support you in a lot of documentation.

● During the concurrent requests, they wait for the first request to complete.

● Nodes are good with short iterative requests.

● Nodes handle things on smaller tasks easily.

● Node.js uses JavaScript.

Cons

● Node.js does not scale by default.

● It stinks at CPU intensive.

● When huge files are processed, they run out of memory quicker.

Conclusion

Thus, in this article, we have seen the good and bad of node.js web app development. So always keep them in mind while deciding to choose node.js for web app development.