Add watchOnce() method to avoid accidentally watching a channel multiple times...
EDIT maybe it should be called something different because watchOnce sounds like it will only invoke the handler once... In fact it means 'attach once' but can trigger multiple times.
Add watchOnce() method to avoid accidentally watching a channel multiple times...
EDIT maybe it should be called something different because
watchOncesounds like it will only invoke the handler once... In fact it means 'attach once' but can trigger multiple times.