@darwino/darwino/dist/lib/JsonEquals.js

A set of Javascript classes and utilities

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 *
 * (c) Copyright Darwino Inc. 2014-2016.
 *
 * Notice: The information contained in the source code for these files is the property 
 * of Darwino Inc. which, with its licensors, if any, owns all the intellectual property 
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//
// Deep compare 2 JSON objects
// Inspired from https://github.com/epoberezkin/fast-deep-equal
// MIT license
//
export default function jsonEquals(a, b) {
  if (a === b) return true;

  if (a && b && typeof a === 'object' && typeof b === 'object') {
    if (Array.isArray(a)) {
      var _length = a.length;
      if (_length != b.length) return false;

      for (var i = _length; i-- !== 0;) {
        if (!jsonEquals(a[i], b[i])) return false;
      }

      return true;
    }

    var keys = Object.keys(a);
    var length = keys.length;
    if (length !== Object.keys(b).length) return false;

    for (var _i = length; _i-- !== 0;) {
      if (!Object.prototype.hasOwnProperty.call(b, keys[_i])) return false;
    }

    for (var _i2 = length; _i2-- !== 0;) {
      var key = keys[_i2];
      if (!jsonEquals(a[key], b[key])) return false;
    }

    return true;
  } // true if both NaN, false otherwise


  return a !== a && b !== b;
}
;
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