Node.js is a platform built on Chrome's Javascript runtime for easily building fast and scalable network applications.
Node.js is a single-threaded, non-blocking, and even driven architecture.
When to use Node JS?
Considering the main features of Node.js and its strengths, we can say data-driven, I/O-driven, event-driven, and non-blocking applications benefit the best from a Node.js implementation
It can be used to create:
Web servers
Real-Time applications
Command line applications
Building APIs
Machnisam of why Node JS is so fast?
Node JS is using an event loop that handles the asynchronous task.
The event loop makes our programming nonblocking.
We can handle multiple requests at a time parallel that's the reason why Node JS is so fast.
What is Express JS?
Express JS is a Node.JS based web application framework that provides broad features for building web and mobile applications.
It's a layer built on top of the Node JS that helps manage servers and routes
What is event loop?
The event loop makes the code async.
Behind the scenes when our code runs asynchronously, some containers are call-stack, call-back queue, web API, and microtask queue.
The purpose of the event loop is to execute the async task as per priority
What is Package.json file?
The Package.json file is the heart of any Node project.
In the Package.json file we keep all the details of the projects that hold various metadata relevant to the project like version, description, dependencies, run scripts, license, and all npm packages
The purpose of the event loop is to execute the async task as per priority
