anchor.diff:    always: always
     muteRejection: muteRejection
     rejectOnError: rejectOnError
  -  isBodyDescendant: isBodyDescendant
     isBasicObjectProperty: isBasicObjectProperty
     isCrossDomain: isCrossDomain
     microtask: microtask
  
positive.code:       if isGiven(entryValue) # ignore undefined/null, like SQL would do
          totalValue += entryValue
      totalValue
  
    ###**
    Returns whether the given element is a descendant of the `<body>` element.
  
    @function up.util.isBodyDescendant
    @internal
    ###
    isBodyDescendant = (element) ->
      $(element).parents('body').length > 0
  
    isBasicObjectProperty = (k) ->
      Object.prototype.hasOwnProperty(k)
  
negative.code:       'right'
  
    ###**
    Hides the given element faster than `jQuery.fn.hide()`.
  
    @function up.util.hide
  