how to get the value of textarea in react

1  getInitialState: function() {
2    return {value: 'Hello!'};
3  },
4  handleChange: function(event) {
5    this.setState({value: event.target.value});
6  },
7  render: function() {
8    return (
9      <input
10        type="text"
11        value={this.state.value}
12        onChange={this.handleChange}
13      />
14    );
15  }
16