title: Why is this configuration for ESLint in Visual Studio 2017 not working?
body: <p>I am currently wondering, why ESLint is not working in my project in Visual Studio 2017. There is the file ".eslintrc" in the project-root:</p>
  
  <pre><code>{
  "extends": "defaults/configurations/eslint",
  "env": {
      "browser": true
  },
  "globals": {
      "xhr": true
  },
  "rules": {
      "eqeqeq": [ "error", "always", { "null": "ignore" } ]
  }
  }
  </code></pre>
  
  <p>If I remove the line with "eqeqeq", everything is working fine. But as soon as I add this line, no errors will be displayed at all.</p>
  
  <p>Question 1: Is there any way to see an error-message about the issue ESLint obviously has?</p>
  
  <p>Question 2 as a fallback: What is the issue with this line?</p>