gendiff-ver2/dist/differ.js

gendiff project lvl 2

'use strict';

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

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

var getDifferenceObjects = function getDifferenceObjects(firstObject, secondObject) {
  var firstKeys = Object.keys(firstObject);
  var secondKeys = Object.keys(secondObject);
  var uniqKeys = _lodash2.default.union(firstKeys, secondKeys);

  var arrayDiff = uniqKeys.reduce(function (acc, key) {
    if (key in firstObject && key in secondObject) {
      if (firstObject[key] instanceof Object || secondObject[key] instanceof Object) {
        var _result2 = { type: 'children',
          body: {
            key: key,
            oldValue: getDifferenceObjects(firstObject[key], secondObject[key])
          }
        };
        return [].concat(_toConsumableArray(acc), [_result2]);
      }

      if (firstObject[key] === secondObject[key]) {
        var _result3 = { type: 'same',
          body: {
            key: key,
            oldValue: firstObject[key]
          }
        };
        return [].concat(_toConsumableArray(acc), [_result3]);
      }

      var _result = {
        type: 'changed',
        body: {
          key: key,
          newValue: secondObject[key],
          oldValue: firstObject[key]
        }
      };
      return [].concat(_toConsumableArray(acc), [_result]);
    }

    if (!(key in secondObject)) {
      var _result4 = {
        type: 'deleted',
        body: {
          key: key,
          oldValue: firstObject[key]
        }
      };
      return [].concat(_toConsumableArray(acc), [_result4]);
    }
    var result = {
      type: 'add',
      body: {
        key: key,
        oldValue: secondObject[key]
      }
    };
    return [].concat(_toConsumableArray(acc), [result]);
  }, []);
  return arrayDiff;
};

exports.default = getDifferenceObjects;
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