content: import React from 'react';
  import DatePicker from 'material-ui/DatePicker';
  
  /**
   * DatePicker` can be implemented as a controlled input,
   * where `value` is handled by state in the parent component.
   */
  export default class DatePickerExampleControlled extends React.Component {
  
    constructor(props) {
      super(props);
  
      this.state = {
        controlledDate: null,
      };
    }
  
    handleChange = (event, date) => {
      this.setState({
        controlledDate: date,
      });
    };
  
    render() {
      return (
        <DatePicker
          hintText="Controlled Date Input"
          value={this.state.controlledDate}
          onChange={this.handleChange}
        />
      );
    }
  }
  