anchor.diff:    always: always
     muteRejection: muteRejection
     rejectOnError: rejectOnError
  -  isBodyDescendant: isBodyDescendant
     isBasicObjectProperty: isBasicObjectProperty
     isCrossDomain: isCrossDomain
     microtask: microtask
  
positive.code:   # parsePath: parsePath
    evalOption: evalOption
    horizontalScreenHalf: horizontalScreenHalf
    detachWith: detachWith
    flatten: flatten
    isTruthy: isTruthy
    isSingletonElement: isSingletonElement
  
negative.code:       if isGiven(entryValue) # ignore undefined/null, like SQL would do
          totalValue += entryValue
      totalValue
  
    isBasicObjectProperty = (k) ->
      Object.prototype.hasOwnProperty(k)
  