Formuj działanie za pomocą React
class EssayForm extends React.Component {
constructor(props) {
super(props);
this.state = { value: 'Please write an essay about your favorite DOM element.' };
this.handleChange = this.handleChange.bind(this);
this.handleSubmit = this.handleSubmit.bind(this);
}
handleChange(event) { this.setState({value: event.target.value}); }
handleSubmit(event) {
alert('An essay was submitted: ' + this.state.value);
event.preventDefault();
}
render() {
return (
<form onSubmit={this.handleSubmit}>
<label>
Essay:
<textarea value={this.state.value} onChange={this.handleChange} /> </label>
<input type="submit" value="Submit" />
</form>
);
}
}
Hungry Hornet