menu_book Course Curriculum (ActionScript 3 Complete Course) expand_more
Filters
Learn Filters in ActionScript 3 with a construct-specific explanation, a unique example, a practical boundary, and a mastery check.
Filters is an atomic ActionScript 3 topic inside Display List. The example below uses the actual construct named by the lesson rather than a generic placeholder.
Focus on what Filters changes: the input, binding, control path, object state, collection, runtime effect, or language contract. Then alter one value and verify that the behavior changes for a reason specific to this feature.
Topic-specific example
import flash.filters.BlurFilter; sprite.filters=[new BlurFilter(4,4,1)];
Check the input collection shape, whether the operation mutates or returns a new value, and what happens for an empty collection.