Files
pulse-libs/projetos/@pulse-libs/core/node_modules/react-is
pulse-agent bbdb68a6de feat(lib-core): biblioteca atomica @pulse-libs/core v1.0.0-beta.1
Esta commit conteudo a estrutura atomica completa:

- types:     Result<T,E>, AsyncState<T>, Paginated<T>, SortConfig<T>
- utils:     date, str, num, cn, debounce, throttle, storage, arr, obj
- validators: Zod schemas — email, password, uuid, url, phone, CPF/CNPJ, sanitizedStr, safeParse
- hooks:     useToggle, useAsync, useDebounce, useLocalStorage, useMedia, useInterval, useOnClickOutside, useClipboard, useFetch
- components: Button, Input, Alert, Card, Spinner (atomic design pattern)
- build:     tsup v8 ESM+CJS + DTS + sourcemaps — 0 erros
- tests:     57 testes 100% usuarios
- docker:    multi-stage Dockerfile (node 20-alpine)
- config:    vitest, tsup, tsconfig strict, .npmignore

Filosofia atomica:/utils ← /types ← /validators ← /hooks ← /components
Build: npm run build | Test: npm test | Publish: npm publish

🤖 Generated with Pulse (openclaw + nova-self-improver)
2026-05-19 21:43:03 -03:00
..

react-is

This package allows you to test arbitrary values and see if they're a particular React element type.

Installation

# Yarn
yarn add react-is

# NPM
npm install react-is

Usage

Determining if a Component is Valid

import React from "react";
import * as ReactIs from "react-is";

class ClassComponent extends React.Component {
  render() {
    return React.createElement("div");
  }
}

const FunctionComponent = () => React.createElement("div");

const ForwardRefComponent = React.forwardRef((props, ref) =>
  React.createElement(Component, { forwardedRef: ref, ...props })
);

const Context = React.createContext(false);

ReactIs.isValidElementType("div"); // true
ReactIs.isValidElementType(ClassComponent); // true
ReactIs.isValidElementType(FunctionComponent); // true
ReactIs.isValidElementType(ForwardRefComponent); // true
ReactIs.isValidElementType(Context.Provider); // true
ReactIs.isValidElementType(Context.Consumer); // true
ReactIs.isValidElementType(React.createFactory("div")); // true

Determining an Element's Type

Context

import React from "react";
import * as ReactIs from 'react-is';

const ThemeContext = React.createContext("blue");

ReactIs.isContextConsumer(<ThemeContext.Consumer />); // true
ReactIs.isContextProvider(<ThemeContext.Provider />); // true
ReactIs.typeOf(<ThemeContext.Provider />) === ReactIs.ContextProvider; // true
ReactIs.typeOf(<ThemeContext.Consumer />) === ReactIs.ContextConsumer; // true

Element

import React from "react";
import * as ReactIs from 'react-is';

ReactIs.isElement(<div />); // true
ReactIs.typeOf(<div />) === ReactIs.Element; // true

Fragment

import React from "react";
import * as ReactIs from 'react-is';

ReactIs.isFragment(<></>); // true
ReactIs.typeOf(<></>) === ReactIs.Fragment; // true

Portal

import React from "react";
import ReactDOM from "react-dom";
import * as ReactIs from 'react-is';

const div = document.createElement("div");
const portal = ReactDOM.createPortal(<div />, div);

ReactIs.isPortal(portal); // true
ReactIs.typeOf(portal) === ReactIs.Portal; // true

StrictMode

import React from "react";
import * as ReactIs from 'react-is';

ReactIs.isStrictMode(<React.StrictMode />); // true
ReactIs.typeOf(<React.StrictMode />) === ReactIs.StrictMode; // true