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Advanced TypeScript Masterclass

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1.Strict types

Introduction No Implicit `any`Fixing `noImplicitAny` Errors The `unknown` Type Strict Null Checks Optionality Strict Property Initialization Non-Null Assertion Operator Exercise in Strictness

2.Generics

Introduction Function Types Generic Functions Generic Functions Example - Typing `reduce`Generic Interfaces - OOP Perspective Generic Interfaces - FP Perspective Type Argument Constraints Type Constructors Type Argument Propagation

3.Composing types

Introduction Union and Intersection Types Discriminated Union Types Discriminated Unions in Practice State Machines Discriminated Unions vs Subtyping

4.Advanced types

Introduction Conditional Types Introduction Built-in Conditional Types The `infer` Keyword Conditional Types Example - React Component Props Mapped Types Introduction Built-in Mapped Types Type Guards Custom Type Guards Nominal Types

5.TypeScript in practice

Introduction Debugging Errors: Type Assignability Debugging Errors: Narrowing Types Debugging Errors: Unintuitive Error Message React and TypeScript: `useState` Hook React and TypeScript: `useReducer` Hook RxJS and TypeScript: `pipe`

6.Conclusion

Advanced TypeScript Masterclass

Exercise in Strictness

We'll cover the following...

The code below compiles with the strict flag set to false. Adjust it ...