組件生命週期包括三步：initialization, update, destruction.
過程方法見下表總結：| Life Cycle Procedure | |||
| initialization | construction | ||
| attachment(be added to the display list and it has a parent) | |||
| initialization | dispatches the preinitialize event | ||
| createChildren() | |||
| dispatches the initialize event | |||
| goes throught a full invalidation & validation ( This step occurs both the here and during the update phase) | commitProperites() | ||
| measure() | |||
| updateDisplayList() | |||
| update | Waiting for update request | ||
| Update request | |||
| Invalidation | |||
| Validation | |||
| destruction | Be removed from this display list no longer referenced anywhere |