TypeScript

• Practice repo

• ! operator in typescript after object method

• {} which, in TypeScript, means “any non-null value”

Types vs interfaces

• type aliases can act sort of like interfaces, however, there are 3 important differences ( union types, declaration merging)

• use whatever suites you and your team, just be consistent

• always use interface for public API's definition when authoring a library or 3rd party ambient type definitions

• consider using type for your React Component Props and State

Links

• main topics that can be asked on interviews for Typescript

• roadmap.sh/typescript

• Challenge - https://github.com/type-challenges/type-challenges

• Articles

  • Учимся писать сложные Typescript типы на примере роутинга в React

  • Сокращение типизации с помощью Util Types в Typescript