Learn TypeScript in a course built only for you. And actually retain it.
Go beyond any: generics, discriminated unions, and the type patterns that make React components self-documenting and refactors fearless.
Free to start · no account needed
Built around your goal, not a catalog
What your course could open with
lrnit interviews you first (what you know, why you’re learning, how you think), then generates every lesson for that. Sample lessons from a course like yours:
Measured, not watched
By the end, you’ll be able to
- Type component APIs so misuse fails at compile time
- Model loading/error/success states without impossible combinations
- Migrate JavaScript code incrementally with confidence
What a capability check looks likebeforenow
Type component props+59
Model UI states safely+61
Migrate JS incrementally+63
Every lesson ends in assessment. Mastery is tracked per concept with spaced review, and the course adapts to what you actually retain. Finishing means a timed final exam and a verifiable certificate, not a completion badge.
“It felt like the course already knew what I did for a living.”
Questions people ask
- How much React and TypeScript do I need first?
- Solid React and some JavaScript. You do not need TypeScript beyond the basics; the course takes you past any into generics and discriminated unions.
- Will it help me migrate an existing JS codebase?
- Yes. There is a migration playbook for converting a JavaScript codebase incrementally without stopping ship.
- Does it stay focused on component code?
- Yes. The types it teaches are the ones that catch real bugs in props, state, and hooks, checked against real component scenarios.
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Free to start · no account needed
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