onClick vs onSubmit in React

问题

I have a simple input in react that won't work with onSubmit but with onClick. Why is that? Here is the link to an example.

const styles = {
  fontFamily: 'sans-serif',
  textAlign: 'center',
};

const clicked = e => {
  alert("Hi")
}
const App = () => (
  <div style={styles}>
    <input type='submit' value='click' onSubmit={clicked}/>
  </div>
);

ReactDOM.render(<App />, document.getElementById('root'));

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>
<div id="root" />

回答1:

onSubmit is a prop for <form>, you should add the handler on to that element:

<form onSubmit={onSubmit}>
  <input ... />
</form>

回答2:

I think it needs to be in a <form></form> for submit to work

回答3:

Because you're not submitting anything. onSubmit is for submitting forms...

来源：https://stackoverflow.com/questions/48757923/onclick-vs-onsubmit-in-react