@types/react-is

Identifying React Elements

This feature allows you to check if a value is a React element. The code sample demonstrates how to use the `isElement` function to determine if a given value is a React element.

import * as ReactIs from 'react-is';

function isElement(element: any): boolean {
  return ReactIs.isElement(element);
}

Checking for Specific Element Types

These functions enable checking if a React element is a Fragment or a Portal, respectively. This is useful for conditional rendering or logic that depends on the type of component.

import * as ReactIs from 'react-is';

function isFragment(value: any): boolean {
  return ReactIs.isFragment(value);
}

function isPortal(value: any): boolean {
  return ReactIs.isPortal(value);
}

Identifying Context Consumers and Providers

This feature allows for the identification of Context Consumers and Providers, which can be useful in complex applications that make heavy use of React's Context API for managing state.

import * as ReactIs from 'react-is';

function isContextConsumer(value: any): boolean {
  return ReactIs.isContextConsumer(value);
}

function isContextProvider(value: any): boolean {
  return ReactIs.isContextProvider(value);
}