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Express.js Notes — Routing, Middleware & REST APIs

Docs

Practical Express.js reference covering application setup, routing, middleware, request and response handling, error handling, REST APIs, and common backend development concepts.

#Express.js#Node.js#Backend#REST API

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MERN Stack Complete Notes

Docs

A complete handwritten MERN Stack reference covering MongoDB, Express.js, React.js, and Node.js, with practical notes on APIs, authentication, project architecture, security, deployment, real-world development, and interview preparation.

#MERN#MERN Stack#MongoDB#Express.js

Featured

React Developer Handbook: From Fundamentals to Modern React

Docs

A practical handwritten React reference covering core React concepts, JSX, components, props, state, hooks, events, forms, routing, API integration, performance, and modern React development.

#React#React.js#React Handbook#React Notes

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JavaScript Complete Notes — Beginner to Advanced

Docs

Complete 40-page handwritten JavaScript notes covering fundamentals, variables, data types, functions, arrays, objects, DOM, events, asynchronous JavaScript, ES6+, classes, modules, promises, async/await, event loop, advanced concepts, performance, and security.

#JavaScript#JavaScript Notes#JS Notes#JavaScript Tutorial

Postman

Tool

API development platform for sending requests, testing APIs, creating collections, documenting endpoints, and automating API workflows.

#Postman#API#REST API#API Testing

TypeScript Handbook

Docs

Official handbook for learning TypeScript's type system, functions, generics, narrowing, classes, modules, and configuration.

#TypeScript#JavaScript#Type System#Web Development