react-stripe-elements/es/utils/isEqual.js

React components for Stripe.js and Stripe Elements

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

var PLAIN_OBJECT_STR = '[object Object]';

var isEqual = function isEqual(left, right) {
  if ((typeof left === 'undefined' ? 'undefined' : _typeof(left)) !== 'object' || (typeof right === 'undefined' ? 'undefined' : _typeof(right)) !== 'object') {
    return left === right;
  }

  if (left === null || right === null) return left === right;

  var leftArray = Array.isArray(left);
  var rightArray = Array.isArray(right);

  if (leftArray !== rightArray) return false;

  var leftPlainObject = Object.prototype.toString.call(left) === PLAIN_OBJECT_STR;
  var rightPlainObject = Object.prototype.toString.call(right) === PLAIN_OBJECT_STR;

  if (leftPlainObject !== rightPlainObject) return false;

  if (!leftPlainObject && !leftArray) return false;

  var leftKeys = Object.keys(left);
  var rightKeys = Object.keys(right);

  if (leftKeys.length !== rightKeys.length) return false;

  var keySet = {};
  for (var i = 0; i < leftKeys.length; i += 1) {
    keySet[leftKeys[i]] = true;
  }
  for (var _i = 0; _i < rightKeys.length; _i += 1) {
    keySet[rightKeys[_i]] = true;
  }
  var allKeys = Object.keys(keySet);
  if (allKeys.length !== leftKeys.length) {
    return false;
  }

  var l = left;
  var r = right;
  var pred = function pred(key) {
    return isEqual(l[key], r[key]);
  };

  return allKeys.every(pred);
};

exports.default = isEqual;