dfi-base - abstract classes written in ES6 with typescript:

base utils

• dfiObject - private properties implementation with WeakMap
• dfiEventObject - dfiObject extended with event emitter (correctly handling symbols as events)
• dfiUtils - utils collection
  • maybeCallbackOnce
  • maybeCallback
  • obj2map
  • cloneLiteral
  • formatError

model + collection

backbone inspired event emitting model and collection with private properties(dfiObject)

• dfiModel - model representation
  • get id - return set or autogenerated id
  • get lastUpdate - return last obj modification.
  • public destroy() - remove attributes and properties emit
  • public toJSON() - return plain object with attributes only
  • public toPlain()- return plain object with attributes and properties
  • protected get() - get attribute
  • protected set() - set attribute: if not set emmit DfiModel.events.ADD, always emit DfiModel.events.UPDATE
  • protected has() - check attribute is set
  • protected remove() - remove attribute: emmit DfiModel.events.REMOVE and DfiModel.events.UPDATE
  • protected stampLastUpdate - mark object wit current timestamp
• dfiCollection - collection of dfiModels -implement Map object.

object event emitter with private properties model with attributes collection