updateOrAdd

function

 updateOrAdd() 

Option name	Type	Description
-	String, Object, Array.<Object>	id or object with .id property, or array of properties
[properties]	Object	If id passed, properties for new or existing object
return	Promise

function updateOrAdd (idOrObjectOrArray, newObject) {
  return Array.isArray(idOrObjectOrArray)
    ? updateOrAddMany.call(this, idOrObjectOrArray)
    : updateOrAddOne.call(this, idOrObjectOrArray, newObject)
}