react-native/Libraries/Core/setUpDeveloperTools.js

/**
 * 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.
 *
 * @flow strict-local
 * @format
 */
'use strict';

/**
 * Sets up developer tools for React Native.
 * You can use this module directly, or just require InitializeCore.
 */
if (__DEV__) {
  if (!global.__RCTProfileIsProfiling) {
    // not when debugging in chrome
    // TODO(t12832058) This check is broken
    if (!window.document) {
      require('setupDevtools');
    }

    // Set up inspector
    const JSInspector = require('JSInspector');
    JSInspector.registerAgent(require('NetworkAgent'));
  }
}