title: ESLint - 'process' is not defined
body: <p>I am using ESLinter for a simple node project. Below is the only code I have in index.js: </p>
  
  <pre><code>const express = require('express');
  const app = express();
  
  app.get('/', (req, res) =&gt; {
      res.send({
          hi: 'there'
      });
  });
  
  const PORT = process.env.PORT || 5000;
  app.listen(PORT);
  </code></pre>
  
  <p>I am using <code>VSCode</code> editor. It automatically runs ESLint for JS code. </p>
  
  <p>In the IDE, I see below error for last but one line -</p>
  
  <pre><code>[eslint] 'process' is not defined. (no-undef)
  </code></pre>
  
  <p>Any Idea what's wrong?</p>