Flash MX 2004. Dropped in Adobe Animate.
symbolInstance.actionScript
Dropped in Adobe Animate.
Property; a string that specifies the actions assigned to the symbol. This applies only to movie clip and button instances. For a graphic symbol instance, the value returns undefined.
The following example assigns an onClipEvent action to the first item in the first frame of the first layer in the timeline:
fl.getDocumentDOM().getTimeline().layers[0].
frames[0].elements[0].actionScript
= "onClipEvent(enterFrame) {trace('movie clip enterFrame');}";