React native component as typed model prop

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9 Answers

nativecomponentreact
90%

With PropTypes.element you can specify that only a single child can be passed to a component as children.,To add PropTypes, you may want to declare the component in a separate function before exporting, like this:,You can define default values for your props by assigning to the special defaultProps property:

import PropTypes from 'prop-types';

class Greeting extends React.Component {
  render() {
    return (
      <h1>Hello, {this.props.name}</h1>
    );
  }
}

Greeting.propTypes = {
  name: PropTypes.string
};
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88%

Most components can be customized when they are created, with different parameters. These created parameters are called props, short for properties.,For example, one basic React Native component is the Image. When you create an image, you can use a prop named source to control what image it shows.,With props and the basic Text, Image, and View components, you can build a wide variety of static screens. To learn how to make your app change over time, you need to learn about State.

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72%

PropTypes.node: The prop should be anything that can be rendered by React — a number, string, element, or array (or fragment) containing these types,PropTypes.element: The prop should be a React element,PropTypes also exports the following validators for ensuring that the value passed to a prop can be rendered by React.

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65%

For React.Component<P, S>, each generic argument corresponds to the props and state types respectively. There are no differences in TypeScript usage between a normal or pure component.,For component snapshots, a third generic type argument can be passed to React.Component that represents the type used for the update snapshot as shown here:,To implement a React class component, the classes to extend are React.Component<P, S> or React.PureComponent<P, S>.

1n pm install @types / react--dev
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75%

You can get more details here,,May be you are talking about passing a react component as a prop, you can do it using PropTypes.elementType ,Are you able to type a variable or prop as a JSX/React component?

The way to go is to use Screen as the type for the prop

export default class IconModel {
   name: string
   title: string
   iconType: "AntDesign" | "Ionicons"
   component: Screen
   iconName: string
   size: number
}
40%

Each component in a React app is also aware of two different types of data, each having different roles:,props is data which is passed into a component when it is created, used as the 'options' which you want for any given component. If you had a button component, an example prop would be the text of the button. A component can't change its props (ie. they are immutable).,React lets you create multiple components which are combined to form a view, but each component can also handle the logic that a controller might have provided. For example:

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22%

Next.js: npx create-next-app -e with-typescript will create in your current folder,Create React App: npx create-react-app name-of-app --template typescript will create in new folder,Snowpack: npx create-snowpack-app my-app --template app-template-react-typescript

import * as React from "react";
import * as ReactDOM from "react-dom";
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60%

Learn how to type React class components and stateless functional components with Flow ,Before we show how to type a React class component with Flow, let us first show how you would write a React class component without Flow but with React’s prop types. You would extend React.Component and add a static propTypes property.,In addition to classes, React also supports stateless functional components. You type these components like you would type a function:

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For intrinsic elements, it is the type of the property on JSX.IntrinsicElements,It is possible to define the type of a class component. However, to do so it is best to understand two new terms: the element class type and the element instance type.,The element attribute type is used to type check the attributes in the JSX. Optional and required properties are supported.

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