Tips for importing React-Native types using TypeScript with Flow?

Within my react-native application, there is a TextInput component that reads various types from the following directory path:

/Users/karl/Library/Caches/typescript/3.6/node_modules/@types/react-native/index.d.ts

This file contains multiple types, one of which is:

export type KeyboardType = 'default' | 'email-address' | 'numeric' | 'phone-pad';

To access this file, I can simply use cmd + clicking on a specific prop I have added (using vscode) to view its definition.

My query now revolves around referencing these types in the said file in order to utilize them within my Flow typing definitions.

I wish to achieve something similar to the following pseudocode snippet:

// pseudocode
import type { KeyboardType } from 'react-native'

Any guidance on how I can accomplish this task?

typescriptreact-nativeflowtypetypecheckingflow-typed

Answer №1

When dealing with flow-typed, it is recommended to directly add the types from the component source like this:

import type {
  KeyboardType,
  ReturnKeyType,
} from 'react-native/Libraries/Components/TextInput/TextInput';

However, if you are working with typescript, start by installing @types/react-native and then acquiring all the types from react-native as follows:

import type { ReturnKeyType, KeyboardType } from 'react-native';

Answer №2

Great job so far! Just a quick tip - you can omit the word type following import:

import { Image, StyleSheet, ReturnKeyType, KeyboardType } from "react-native";

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