title: Import JavaScript file and call functions using webpack, ES6, ReactJS
body: <p>Trying to do something I would think would be very simple. I would like to import an existing JavaScript library and then call it's functions.  So for example I would like to import blah.js and then call blah(). </p>
  
  <pre><code>import React from 'react';
  import {blah} from 'blah/js/blah.js';
  
  class MyClass extends React.Component {
      constructor() {
          super();
      }
  
      componentDidMount() {
          window.addEventListener('resize', this.handleResize);
      }
  
      componentWillUnmount() {
          window.removeEventListener('resize', this.handleResize);
      }
  
      handleResize() {
          blah.blah();
      }
  
      render() {
            ....
      }
  }
  
  export default MyClass;
  </code></pre>
  
  <p>Just wondering what magical combination of things I have to do to make this work.  Maybe I'm just missing the point.  The example gives the error "TypeError: _blah.blah is undefined".</p>