Zero-lag Keystroke Tracking 기반 실시간 타이핑 분석 엔진 구현
I built a minimalist typing speed tester with real-time WPM, CPS, and post-session analytics
I built a minimalist typing speed tester with real-time WPM, CPS, and post-session analytics
AI Button UX — Where to Put It, How to Label It, What to Show While Waiting
DOM Monitoring 기반 AI 응답 상태 감지를 통한 인터랙티브 대기 인터페이스 구현