Training wrap-up
Training wrap-up
Chapters - Table of contents →
This training wrap-up can be used as a _cheat-sheet _for TypeScript, you'll find all the essential knowledge required to use TypeScript at scale:
Simple types
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Essentials scalars, arrays, union types (|) and literal string union.
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Typing objects with interface. Remember, interfaces are closed by default and properties don't include null and undefined by default!
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Typing a React component is easy, however, beware of argument destructuring and inline interfaces combined!
Function overloads and Generics
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Function overloads and Generics helps make functions more flexible.
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Advanced Generics helps to make functions requirements more explicit and flexible.
Mapped types
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Extend existing types by leveraging type helpers instead of duplicating code.
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Leverage Mapped types to build your own type helpers
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The TypeScript type helpers to keep in mind at all time.
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