react-esm/dist-src/index.js

React is a JavaScript library for building user interfaces.

/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
import ReactVersion from 'shared/ReactVersion';
import { REACT_CONCURRENT_MODE_TYPE, REACT_FRAGMENT_TYPE, REACT_PROFILER_TYPE, REACT_STRICT_MODE_TYPE, REACT_SUSPENSE_TYPE } from 'shared/ReactSymbols';
import { Component, PureComponent } from "./ReactBaseClasses.js";
import { createRef } from "./ReactCreateRef.js";
import { forEach, map, count, toArray, only } from "./ReactChildren.js";
import { createElement, createFactory, cloneElement, isValidElement } from "./ReactElement.js";
import { createContext } from "./ReactContext.js";
import { lazy } from "./ReactLazy.js";
import forwardRef from "./forwardRef.js";
import memo from "./memo.js";
import { useCallback, useContext, useEffect, useImperativeHandle, useDebugValue, useLayoutEffect, useMemo, useReducer, useRef, useState } from "./ReactHooks.js";
import { createElementWithValidation, createFactoryWithValidation, cloneElementWithValidation } from "./ReactElementValidator.js";
import ReactSharedInternals from "./ReactSharedInternals.js";
import { enableStableConcurrentModeAPIs } from 'shared/ReactFeatureFlags';
const React = {
  Children: {
    map,
    forEach,
    count,
    toArray,
    only
  },
  createRef,
  Component,
  PureComponent,
  createContext,
  forwardRef,
  lazy,
  memo,
  useCallback,
  useContext,
  useEffect,
  useImperativeHandle,
  useDebugValue,
  useLayoutEffect,
  useMemo,
  useReducer,
  useRef,
  useState,
  Fragment: REACT_FRAGMENT_TYPE,
  StrictMode: REACT_STRICT_MODE_TYPE,
  Suspense: REACT_SUSPENSE_TYPE,
  createElement: __DEV__ ? createElementWithValidation : createElement,
  cloneElement: __DEV__ ? cloneElementWithValidation : cloneElement,
  createFactory: __DEV__ ? createFactoryWithValidation : createFactory,
  isValidElement: isValidElement,
  version: ReactVersion,
  unstable_ConcurrentMode: REACT_CONCURRENT_MODE_TYPE,
  unstable_Profiler: REACT_PROFILER_TYPE,
  __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: ReactSharedInternals
}; // Note: some APIs are added with feature flags.
// Make sure that stable builds for open source
// don't modify the React object to avoid deopts.
// Also let's not expose their names in stable builds.

if (enableStableConcurrentModeAPIs) {
  React.ConcurrentMode = REACT_CONCURRENT_MODE_TYPE;
  React.Profiler = REACT_PROFILER_TYPE;
  React.unstable_ConcurrentMode = undefined;
  React.unstable_Profiler = undefined;
}

export default React;