millermedeiros/js-signals — Issue #35: add method .has(listener):Boolean
Author: millermedeiros
Created: 2011-10-27 14:58:36+00:00
State: open
Labels: enhancement, feature, question

right now we have an internal method `_indexOfListener(listener)` so implementing a `has(listener)` is pretty trivial... it can be useful in some cases...