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Higher-order Components | Flow
A popular pattern in React is the higher-order component pattern, so it's important that we can provide effective types for higher-order components in Flow. If you don't already know what a higher-order component is then make sure to read the React documentation on higher-order components before continuing. You can make use of the React.AbstractComponent type to annotate your higher order componen
Event Handling | Flow
The React docs for handling events show how an event handler can be attached to a React element. To type these event handlers you may use the SyntheticEvent<T> types like this: 1import {useState} from 'react';2import * as React from 'react';3 4function MyComponent(): React.Node {5 const [state, setState] = useState({count: 0});6 7 const handleClick = (event: SyntheticEvent<HTMLButtonElement>) => {
Components | Flow
Adding Flow types to your React components is incredibly powerful. After typing your component, Flow will statically ensure that you are using the component in the way it was designed to be used. Functional ComponentsAdding Flow types to a functional component is the same as adding types to a standard function. Just create an object type for the props and Flow will ensure that the props passed to
Type Reference | Flow
React exports a handful of utility types that may be useful to you when typing advanced React patterns. In previous sections we have seen a few of them. The following is a complete reference for each of these types along with some examples for how/where to use them. These types are all exported as named type exports from the react module. If you want to access them as members on the React object (
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