What you'll be able to do
- Predict any JS value behavior — coercion, == vs ===, NaN, Object.is, truthy/falsy, short-circuiting
- Explain exactly how JS runs your code (execution contexts, call stack, scope chain, hoisting/TDZ, the event loop)
- Write clean functions using closures, higher-order functions, and call/apply/bind, choosing declarations vs arrows deliberately
- Handle errors as a first-class concern with throw, Error objects, custom error classes, and try/catch/finally
- Transform data fluently with map/filter/reduce, find, some/every, flat and sort — without the mutation traps
- Build interactive UIs with DOM manipulation, events, delegation, propagation control, and the Intersection Observer
- Model real domains with prototypes and ES6 classes (inheritance, encapsulation, private fields, getters/setters)
- Write robust async code with Promises, fetch and async/await, predicting microtask vs macrotask ordering
- Structure a real app into ES modules with npm and a bundler, and ship a production build
Before you start
- Comfort with HTML and CSS (see the HTML and CSS Complete Guide courses)
- A code editor and a modern browser
- No prior JavaScript experience required
Tools & technologies
How you'll learn
This course's public GitHub repo is shared when the next cohort opens —ask us for a preview and we'll send you the link.
The certificate you'll earn
- Issued on program completion, with your name, course and grade.
- Carries a unique certificate ID and QR code.
- Anyone can confirm it in seconds on ourcertificate verification page — recruiters included.
A deep, single-language JavaScript course for Indian students and early-career developers who already know HTML and CSS. You will build an unbreakable foundation in values, types, coercion, control flow, functions, arrays and objects — then go under the hood (engine/runtime, execution contexts, the call stack, scope chain, hoisting/TDZ, the this keyword, closures, prototypes, the event loop) so undefined and a broken this never mystify you again. You will learn the modern syntax real codebases assume (destructuring, spread/rest, optional chaining, nullish coalescing, Maps/Sets, modern array methods), handle errors deliberately (throw, custom Error classes, try/catch/finally), use regular expressions and JSON, master DOM manipulation and events, model domains with prototypes and ES6 classes, write robust asynchronous code with Promises, fetch and async/await, and structure a real app into ES modules with npm and a bundler. Along the way you ship many original mini-projects and finish with SkillForge — a complete modular, asynchronous, API-driven application with real planning, an MVC-style architecture, and a production build.
Upcoming cohorts
New cohort dates are announced regularly — send an enquiry and we'll reserve you a seat in the next one.
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