옷! say "hello" to Balckbird and "goodbye" to alert() Blackbird는 Open source Javascript Logging Utility입니다. 정말 심플한 js와 css를 include하면 자바스크립트 로깅을 할 수 있군요. UI도 예쁘네요.. Public API log.toggle()Hide/show Blackbirdlog.move()Move Blackbird to next fixed positions: top-left, top-right, bottom-left, bottom-rightlog.resize()Expand/contract Blackbird log.clear()Clear all contents of Blackbirdlog.debug( messa..