diferencia entre objeto y variable en el ejemplo de código javascript

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Ejemplo: javascript de diferencia de objeto

const inspect =require('util')const transform, isEqual, isArray, isObject =require('lodash')/**
 * Find difference between two objects
 * https://davidwells.io/snippets/get-difference-between-two-objects-javascript
 *
 * @paramobjectorigObj - Source object to compare newObj against
 * @paramobjectnewObj  - New object with potential changes
 * @returnobject differences
 */functiondifference(origObj, newObj)functionchanges(newObj, origObj)let arrayIndexCounter =0returntransform(newObj,function(result, value, key)if(!isEqual(value, origObj[key]))let resultKey =isArray(origObj)? arrayIndexCounter++: key
        result[resultKey]=isObject(value)&&isObject(origObj[key])?changes(value, origObj[key]): value
      )returnchanges(newObj, origObj)/* Usage */const originalObject =
  foo:'bar',
  baz:'fizz',
  cool:true,
  what:
    one:'one',
    two:'two',
  wow:
    deep:
      key:['a','b','c'],
      values:'123',
  array:['lol','hi','there']const newObject =
  foo:'bar',
  baz:'fizz',
  cool:false,// <-- diff
  what:
    one:'one',
    two:'twox'// <-- diff,
  wow:
    deep:
      key:['x','y','c'],// <-- diff
      values:'098'// <-- diff,
  array:['lol','hi','difference']// <-- diff// Get the Diff!const diff =difference(originalObject, newObject)console.log(inspect(diff,showHidden:false, depth:null, colors:true))// result:// //   cool: false,//   what:  two: 'twox' ,//   wow:  deep:  key: [ 'x', 'y' ], values: '098'  ,//   array: [ 'difference' ]// if(diff.cool)console.log('Coolness changed to', diff.cool)

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