JavaScript Learning Journey 🚀

A structured collection of code, notes, and mini-projects written while learning JavaScript from the ground up — from variables and data types all the way to closures, prototypes, and OOP.

📂 Repository Structure

Folder	Topics Covered
01-basics	Variables (let, const, var), data types, type conversion, operators, comparisons, strings, numbers & math, dates
02-basics	Arrays and array methods, objects, object destructuring
03-basics	Functions, scopes, arrow functions, IIFE (Immediately Invoked Function Expressions)
04-control-flow	if/else, switch statements, truthy & falsy values
05-iterations	Loops — for, while, do-while, for...of, for...in, forEach, map, filter, reduce
06-dom	DOM introduction, selecting & manipulating elements, creating and editing nodes
07-projects	DOM-based mini projects (see below)
08-events	Event listeners, event propagation, setTimeout & setInterval
09-advance-one	Promises, async/await, fetch, XMLHttpRequest & API handling
10-classes-and-oop	OOP in JavaScript — constructor functions, prototypes, ES6 classes, inheritance, static properties, call/bind, getters & setters, property descriptors
11-closure-lexical-scope	Lexical scoping and closures with practical examples

🛠️ Mini Projects

Hands-on DOM projects built along the way (07-projects):

1. Color Switcher — change page background on button click
2. BMI Calculator — form handling with input validation
3. Digital Clock — live clock using setInterval
4. Guess the Number — game with state, validation & replay logic
5. Keyboard Event Tracker — displays key, keycode & code on keypress
6. Random Color Generator — start/stop background color changes with intervals

🚀 Running the Code

• .js files — run with Node.js:

  node 01-basics/01-variables.js

• .html files — open directly in a browser and check the console (DevTools → Console).

📝 Notes

Several folders include markdown notes (notes.md, Object-notes.md) summarizing key concepts like the event loop, prototypal inheritance, and closures — written in my own words for quick revision.

🙏 Acknowledgements

Learned by following the Chai aur Code JavaScript series by Hitesh Choudhary.

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This repository is a living document of my JavaScript learning — expect it to grow as I do.