JavaScript

The language of the web, understood - not memorised.

JavaScript in depth: values and types, functions and closures, objects and prototypes, the DOM, the event loop and async, modules, error handling and modern tooling - with free resources on every topic.

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7 stages28 topics₹0 to follow
  1. 1

    Language Basics

    Solid ground: syntax, values, control flow.

    1–2 weeks0/4
  2. 2

    Functions & Closures

    Master the heart of the language.

    2 weeks0/4
  3. 3

    Objects & Prototypes

    Understand what class syntax sugars over.

    2 weeks0/4
  4. 4

    The Browser

    Make pages interactive without a framework.

    2 weeks0/4
  5. 5

    Async JavaScript

    Handle time, network and failure gracefully.

    2 weeks0/4

    Build: API-driven app, vanilla JS

    A searchable, paginated UI over a public API with loading, empty and error states - no frameworks.

  6. 6

    Under the Hood

    The runtime knowledge seniors probe for.

    1 week0/3
  7. 7

    Modern JS & Tooling

    Work like it's a professional codebase.

    1–2 weeks0/5

  8. Final stop: prove it.

    Knowledge without proof is just a claim. Take the free JavaScript certification — a timed, scored assessment with a public verification link recruiters can check in one click.