Function Components
Minimal example
A function component is a function that returns a React element.
Composing components
We can use custom components like MyComponent
in the same way as built-in ones like View
. We use props to communicate between components.
TypeScript types
We typically create a Props
type.
We typically don't set the type of the return value, since it can generally be inferred and doesn't provide much useful type safety.
For more detail: https://github.com/typescript-cheatsheets/react-typescript-cheatsheet#function-components
Component behaviors
We use hooks to add functionality to function components. Hooks are specially implemented functions that typically start with the prefix use
.
React provides ~10 built-in hooks, but we can also build our own. We'll talk much more about hooks later.
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