Learn how let, const and 'as const'  changes the way that TS infers your code.

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Literal types are SO USEFUL in TS - Advanced TypeScript

Learning about the difference between optional properties (name?: string) and undefined unions (name: string | undefined) can give you an amazing productivity boost for certain refactors.

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The tip that saved me HOURS of refactoring time - Advanced TypeScript

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WHEN should I use a Generic? - Advanced TypeScript

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Do the challenge!

https://github.com/type-challenges/type-challenges/blob/main/questions/00004-easy-pick/README.md

KEYOF and EXTENDS right off the bat?! - Type Challenges #1

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