react button onclick
import React, { Component } from 'react';
class App extends Component {
constructor(props) {
super(props);
this.sayHello = this.sayHello.bind(this);
}
sayHello() {
alert('Hello!');
}
return (
<button onClick={this.sayHello}>
Click me!
</button>
);
}
export default App;function ActionLink() {
function handleClick(e) { e.preventDefault(); console.log('The link was clicked.'); }
return (
<a href="#" onClick={handleClick}> Click me
</a>
);
}import React from 'react';
function App() {
function sayHello() {
alert('Hello!');
}
return (
<button onClick={sayHello}>
Click me!
</button>
);
}
export default App;<button onClick={sayHello}>Click</button>
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