text: /**
   * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE file in the root directory of this source tree.
   *
   * @flow
   */
  
  'use strict';
  
  export type ValueType =
    | 'array'
    | 'boolean'
    | 'function'
    | 'null'
    | 'number'
    | 'object'
    | 'regexp'
    | 'map'
    | 'set'
    | 'date'
    | 'string'
    | 'symbol'
    | 'undefined';
  
  // get the type of a value with handling the edge cases like `typeof []`
  // and `typeof null`
  const getType = (value: any): ValueType => {
    if (value === undefined) {
      return 'undefined';
    } else if (value === null) {
      return 'null';
    } else if (Array.isArray(value)) {
      return 'array';
    } else if (typeof value === 'boolean') {
      return 'boolean';
    } else if (typeof value === 'function') {
      return 'function';
    } else if (typeof value === 'number') {
      return 'number';
    } else if (typeof value === 'string') {
      return 'string';
    } else if (typeof value === 'object') {
      if (value.constructor === RegExp) {
        return 'regexp';
      } else if (value.constructor === Map) {
        return 'map';
      } else if (value.constructor === Set) {
        return 'set';
      } else if (value.constructor === Date) {
        return 'date';
      }
      return 'object';
      // $FlowFixMe https://github.com/facebook/flow/issues/1015
    } else if (typeof value === 'symbol') {
      return 'symbol';
    }
  
    throw new Error(`value of unknown type: ${value}`);
  };
  
  module.exports = getType;
  