React Basics Lesson 4: How to Attach an Event Listener (Handler) to a Button in React — Highlights

Hit Like +1 and the Number Won't Go Up?! — The Classic React onClick Moment

Attach onClick to a button, hit Like +1, and the number doesn't go up — that twist, and then the moment the number finally rises through the state setter function (따봉변경). The key scenes of Coding Apple's “React Basics Lesson 4: How to Attach an Event Listener (Handler) to a Button in React” packed into 30 seconds.

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