CampusCrate is a student operating system for B.Tech students in India, combining opportunities, academic resources, communities, learning hubs, and career tools in one platform.

Who is CampusCrate built for?

CampusCrate is built for Indian engineering and B.Tech students who need a structured place to discover opportunities, access college resources, join societies, learn technical skills, and build their career profile.

What can students find on CampusCrate?

Students can find hackathons, internships, competitions, notes, test papers, cheatsheets, college communities, DSA and development learning tracks, roadmaps, profiles, and AI career tools.

🟨JavaScript

The language of the web — runs in every browser and on servers via Node.js. Learn ES6+, async, and the DOM.

📘Theory & Lessons 💻Code Examples 🔗MDN JavaScript Guide

4 Phases · 16Topics · Basic → Advanced

Phase 1

JavaScript Basics

4 topics

🟨

Introduction to JavaScript

What JS is, where it runs (browser + Node), the console, and your first script.

📦

Variables & Types

let, const, var (don't use); strings, numbers, booleans, null, undefined, BigInt, Symbol; typeof.

🧮

Operators & Type Coercion

Arithmetic, comparison (== vs ===), logical, ternary, nullish ??, optional chaining ?., template literals.

🔀

Control Flow & Loops

if/else, switch, for, while, do/while, for…of vs for…in, break/continue.

Phase 2

Functions, Arrays & Objects

4 topics

⚙️

Functions & Arrow Functions

Function declarations, expressions, arrow functions, default params, rest/spread, IIFE, closures.

📊

Arrays & Array Methods

push/pop/shift/unshift, slice/splice, map, filter, reduce, find, some, every, sort, flat.

🧱

Objects & Destructuring

Object literals, dot vs bracket access, shorthand properties, destructuring, spread, Object.keys/values/entries.

🔤

Strings & Template Literals

Common methods, template literals, tagged templates, regex basics, padStart/padEnd.

Phase 3

Modern JS & Async

4 topics

🧬

Classes & Prototypes

class syntax, constructors, methods, extends, super, static, private fields (#), the prototype chain.

📦

Modules — import / export

ES modules, default vs named exports, dynamic import(), and how Node + bundlers resolve them.

⏳

Promises & async/await

Callback hell → Promises → async/await; Promise.all/race/allSettled; error handling with try/catch.

🔄

Event Loop & Timers

Call stack, task queue, microtasks, setTimeout, queueMicrotask — why your console.logs print in *that* order.

Phase 4

Browser, DOM & Practice

4 topics

🌐

DOM Manipulation & Events

querySelector, createElement, addEventListener, event delegation, dataset, classList, forms.

📡

Fetch API & JSON

fetch(), Response, JSON parsing, request options, AbortController, error handling patterns.

🐛

Errors, try/catch & Debugging

Error types, throw, try/catch/finally, custom Error classes, Chrome DevTools tour.

🏆

Practice & Projects

Curated LeetCode + HackerRank lists; build ideas — todo app, weather widget, mini SPA, Express API.