Keeps track of if a change occurred. Used by the onChange RenderMode to decide when to render.
onChange
An App has a change tracker by default.
If a change has been registered.
Register a change. Called from any system that performs changes.
Reset the change. Should only be called from the 'consumer' of the change (e.g., an App).
Keeps track of if a change occurred. Used by the
onChangeRenderMode to decide when to render.An App has a change tracker by default.