addToHash(child) → {boolean}
Adds a child of this Group into the hash array.This call will return false if the child is not a child of this Group, or is already in the hash.
Parameters
Name Type Description child DisplayObject The display object to add to this Groups hash. Must be a member of this Group already and not present in the hash.
Returns
boolean - True if the child was successfully added to the hash, otherwise false.
Source code: core/Group.js (Line 439)