6 Mastering TypeScript with React

This chapter covers

Mastering advanced TypeScript techniques specific to React
Typing React hooks
Designing complex component patterns with generics

In this chapter, we delve deeper into the synergy between TypeScript, React components, and the broader application landscape. Imagine your React components as the tenants in a larger property; the application as a whole acts as the landlord. TypeScript takes center stage as the binding contract between these two entities, ensuring clarity, security, and smooth interactions. This chapter marks a crucial step in your journey to mastering the art of writing reliable, scalable, and maintainable React applications by enhancing the tenant–landlord relationship with TypeScript as the pivotal contract.

TypeScript brings clarity to the responsibilities and obligations of each party, making the entire development process more efficient and reliable. As you progress through this chapter, you’ll discover how TypeScript reinforces this contract, making your React applications more robust and resilient. The chapter covers the following topics to round off your TypeScript edification (for now):

6.1 Using React hooks in TypeScript

6.1.1 Typing useState

6.1.2 Typing useRef

6.1.3 Typing contexts and useContext

6.1.4 Typing effects

6.1.5 Typing reducers

6.1.6 Typing memoization hooks

6.1.7 Typing the remaining hooks

6.2 Generic pagination: An example

6.2.1 Forwarding a reference to a generic component

6.2.2 Memoizing a generic component

6.3 Drawbacks of using TypeScript

6.4 TypeScript resources

Summary