title: How to skip the code execution from PhantomJS or grover
body: <p>The problem is next: I have JavaScript code in my application and I want to skip/hide some peace of code from PhantomJS and grover checking/execution.</p>
  
  <p>So, <strong>how can I skip/hide the code execution from PhantomJS or grover?</strong></p>
  
  <p>Note: the problem has occurred when I was writing the JavaScript unit-tests.
  But I think it would be helpful in other cases.</p>