如何在ng-bind中显示选项值？

<select ng-model="selectedOption" ng-options="item for item in options"></select>
<div ng-bind="selectedOption"></div>

<select v-model="selectedOption">
  <option v-for="item in options" v-bind:value="item">{{ item }}</option>
</select>
<div>{{ selectedOption }}</div>

class OptionsComponent extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      selectedOption: '',
      options: ['Option 1', 'Option 2', 'Option 3']
    };
  }

  handleChange(event) {
    this.setState({ selectedOption: event.target.value });
  }

  render() {
    return (
      <div>
        <select value={this.state.selectedOption} onChange={this.handleChange.bind(this)}>
          {this.state.options.map((item, index) => (
            <option key={index} value={item}>{item}</option>
          ))}
        </select>
        <div>{this.state.selectedOption}</div>
      </div>
    );
  }
}