Everything you need to know about Node.js
What is Node.js?
Features of Node.js
Non-blocking and Event-driven
All APIs of the Node.js library are asynchronous, meaning a Node.js-based server never waits for an API to return data. Instead, the server moves to the next API after calling it and a notification mechanism of Events of Node.js helps the server to get a response from the previous API call.
Fast code execution
Applications built using Node.js do not buffer any data but simply output it in chunks.
Single-threaded but Scalable
Node.js uses a single-threaded model with event looping. The event mechanism helps the server to respond in a non-blocking way and makes the server highly scalable as opposed to traditional servers which create limited threads to handle requests.
Advantages of Node.js
Easy to learn
The applications can be scaled in a horizontal manner by the addition of additional nodes to the existing system. This also offers you the option of adding extra resources to the single nodes during the vertical scaling of the application.
Used as a single programming language
Offers high performance
Support of a large and active community
JS has a very large and active community of developers who keep a continuous contribution of solutions which helps its further development and improvement.
Disadvantages of Node.js
Application Programming Interface (API) is not stable
One of the main drawbacks of Node.js is that the API keeps on changing at frequent intervals and does not remain stable.
Node.js doesn’t have a strong library support system
In comparison to other programming languages, Node.js is not equipped with a robust library system which results in users being forced to take support from common libraries when executing tasks like image processing, handling database operations, XML parsing, etc.
What should Node.js be used for?
There are certain types of applications that benefit greatly from Node.js’s features. Here are a few use cases:
- Data Streaming Applications
- Single Page Applications
- I/O bound Applications
- Data-Intensive Real-time Applications (DIRT)
- Single Page Applications
Do keep in mind, however, that these are not limits, but suggestions. Therefore, there are many more scenarios where Node.js can come in handy. If there is one thing we certainly do not recommend is using Node.js for CPU-intensive applications.
In today’s article, we introduced Node.js and its functions. We also discussed some attractive features of the runtime environment as well as its advantages and disadvantages. Lastly, we gave some examples of application types that would be optimal to be built using Node.js.
We hope you found this information useful and if you have any questions or suggestions, please leave them in the comment section down below.