instantsearch.js/cjs/lib/utils/isPlainObject.js

InstantSearch.js is a JavaScript library for building performant and instant search experiences with Algolia.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

/**
 * This implementation is taken from Lodash implementation.
 * See: https://github.com/lodash/lodash/blob/master/isPlainObject.js
 */
function getTag(value) {
  if (value === null) {
    return value === undefined ? '[object Undefined]' : '[object Null]';
  }

  return Object.prototype.toString.call(value);
}

function isObjectLike(value) {
  return _typeof(value) === 'object' && value !== null;
}
/**
 * Checks if `value` is a plain object.
 *
 * A plain object is an object created by the `Object`
 * constructor or with a `[[Prototype]]` of `null`.
 */


function isPlainObject(value) {
  if (!isObjectLike(value) || getTag(value) !== '[object Object]') {
    return false;
  }

  if (Object.getPrototypeOf(value) === null) {
    return true;
  }

  var proto = value;

  while (Object.getPrototypeOf(proto) !== null) {
    proto = Object.getPrototypeOf(proto);
  }

  return Object.getPrototypeOf(value) === proto;
}

var _default = isPlainObject;
exports.default = _default;