Explore the fundamentals of Backend Development using JavaScript, NodeJS and ExpressJS.

1. Front End Development
2. Back End Development
3. Full Stack Development

• Front End refers to what you actually see on the website in a browser.
• It is also referred as Client Side Development.
• Front End developers are responsible for everything that you see when you’re navigating around the Internet.

• Back End refers to what actually happens under the hood on the web servers.
• It is also referred as Server Side Development.
• Back End developers are responsible for the architecture, databases, database transactions and much more.

• Full Stack development is the combination of Front End and Back End development.
• Full Stack developers can be referred as jacks-of-all-trades such as MERN, MEAN and MEVN stack developers.

• It is a network architecture in which clients request though a browser and receive resources from a web server.
• The browser then renders the web pages using DOM interpreter, CSS interpreter and JS Engine.

• 1XX: Informational
• 2XX: Success
• 3XX: Redirection
• 4XX: Client Error
• 5XX: Server Error

• Stands for Application Programming Interface
• Connection between different computer programs
• Allows two different applications to talk to each other

• Stands for JavaScript Object Notation
• It is a lightweight data-interchange format
• It is plain text written in JavaScript object notation
• It is used to send data between computers
• It is language independent

• High level, interpreted programming language
• Runs on Browser as well as on Server
• Conforms to ECMAScript specification
• Multi-paradigm, Single threaded
• Supports Object oriented and Functional Programming style

• Programming language of the browser
• Build interactive UI using JS frameworks like React, Vue and Angular
• Builds very fast Server side and Full Stack applications
• Can also be used in Mobile development using React Native, Ionic
• Can also be used in Desktop App development using Electron JS

• Open-source, cross-platform, back-end - JavaScript runtime environment
• Fast, efficient and highly scalable
• Runs on the V8 JavaScript engine developed by Google
• Allows us to run JavaScript code on the server
• Event driven, non-blocking I/O model
• Javascript Everywhere on the front-end and back-end

• NPM stands for Node Package Manager
• Install 3rd party packages such as frameworks, libraries and tools
• Packages are stored in the node_modules folder
• All dependencies are listed in package.json file
• NPM scripts are used to run different tasks

• Fast, Flexible and Minimalistic Web application framework
• Makes building web application with Node.js much easier
• Extremely light, fast, open-source and most popular
• Used for both server rendered apps as well as API
• Full control of request and response
• Great to use with client side frameworks as it’s all JavaScript

• Handling requests and routes is very fast and simple
• Simple syntax - app.get(), app.post(), app.put(), app.delete() and so on
• Render a HTML template, send JSON/file, redirect URL and much more
• Use any database like MongoDB, PostgreSQL and so on
• Access URL params, Query strings, Base URL and more
• We can store routes in separate files and export using Express Router

• REST stands for Representational State Transfer
• It is a set of architectural constraints
• It transfers representation of the state of a resource to the requester
• General formats: JSON, HTML, plain text and more
• Mostly used for Internet of Things (IoT), Mobile - Development and Web Development

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This repository is published under the MIT license.