如何根据React上的输入表单禁用/启用按钮？

constructor(props) {
  super(props);
  this.state = {
    isButtonDisabled: true
  };
}

handleInputChange(event) {
  const inputValue = event.target.value;
  this.setState({
    isButtonDisabled: inputValue === ""
  });
}

render() {
  const { isButtonDisabled } = this.state;
  return (
    <div>
      <input type="text" onChange={this.handleInputChange} />
      <button disabled={isButtonDisabled}>提交</button>
    </div>
  );
}