Lesson 04 · 10 min
Events and a form without reloading
onClick gets a function. A form needs preventDefault, otherwise the page flashes and reloads.
10 minLesson 4 of 8Practice includedAsk AI on any point
In JSX a handler is a camelCase property: onClick, onChange, onSubmit. The value is a function, not a string. The browser still sends an event object. A form with onSubmit but without event.preventDefault() makes a GET to the current URL, and you lose state.
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