How Node.JS Works?

What is Node.JS?

Node.js is an open-source, cross-platform JavaScript runtime environment that executes JavaScript code outside of a web browser. It’s a powerful tool used for various types of projects. Let’s explore some key aspects:...

Why Node.JS?

Node.js is used to build back-end services like APIs like Web App, Mobile App or Web Server. A Web Server will open a file on the server and return the content to the client. It’s used in production by large companies such as Paypal, Uber, Netflix, Walmart, and so on....

Basic Concepts of Node.JS

The following diagram depicts some important parts of Node.js that are useful and help us understand it better....

Node.js Example to Create Web Server

It is the basic code example to create node.js server....

How Node.JS Works?

Node.js accepts the request from the clients and sends the response, while working with the request node.js handles them with a single thread. To operate I/O operations or requests node.js use the concept of threads. Thread is a sequence of instructions that the server needs to perform. It runs parallel on the server to provide the information to multiple clients. Node.js is an event loop single-threaded language. It can handle concurrent requests with a single thread without blocking it for one request....

Advantages of Node.JS

Easy Scalability: Easily scalable the application in both horizontal and vertical directions.Real-time web apps: Node.js is much more preferable because of faster synchronization. Also, the event loop avoids HTTP overloaded for Node.js development.Fast Suite: NodeJS acts like a fast suite and all the operations can be done quickly like reading or writing in the database, network connection, or file systemEasy to learn and code: NodeJS is easy to learn and code because it uses JavaScript.Advantage of Caching: It provides the caching of a single module. Whenever there is any request for the first module, it gets cached in the application memory, so you don’t need to re-execute the code....

What is Node.JS file?

Node.js files contain tasks that handle file operations like creating, reading, deleting, etc., Node.js provides an inbuilt module called FS (File System)....

Application of Node.JS

Node.js is suitable for various applications, including:...

Common Use Cases of Node.JS

Node.js is versatile and finds applications in various domains:...

Node.JS Ecosystem

Node.js has a vibrant ecosystem with a plethora of libraries, frameworks, and tools. Here are some key components:...

Learn more about Node.JS

Why Node?Node NPM (Node Package Manager)Node First ApplicationNode Start and Run ServerNode Blocking and Non-BlockingNode Callback ConceptNode DebuggingNode Set Console Font ColorNode Web ServerNode Create and Publish NPM packagesNode –save and –save-devNode Event LoopNode FrameworksNode Promise ChainingNode This BindingNode Global ObjectsNode Automatic Restart Server with NodemonNode.js Child ProcessNode.js Global Installation of DependenciesNode.js Session Variable...