title: mapStateToProps and variable is not defined React-Redux
body: <p>I am getting this error:</p>
  
  <blockquote>
    <p>./src/components/Playing.jsx
      Line 15:  'aaa' is not defined  no-undef</p>
  </blockquote>
  
  <p>in my Playing.jsx:</p>
  
  <pre><code>import React, { Component } from 'react'
  
  console.log(aaa);
  </code></pre>
  
  <p>From my Token.jsx</p>
  
  <pre><code>import { connect } from 'react-redux'
  imports { Playing } from '../components/Playing'
  
  const mapStateToProps = state =&gt; ({
    aaa: "asdf"
  })
  
  export default connect(mapStateToProps)(Playing)
  </code></pre>