title: Convert strings with many numbers then add all
body: <p>So far this code for me is working:</p>
  
  <pre><code> var x;
   var y;
   var z;
  
  function functionWithArgs(x, y, z) {
    console.log(x + y + parseInt(z)); // I get a sum of 6
  }
  
  functionWithArgs(1, 2, "3b");
  </code></pre>
  
  <p>But when I do this:</p>
  
  <pre><code>  var x;
    var y;
    var z;
  
  function functionWithArgs(x, y, z) {
    console.log(x + y + parseInt(z)); //
  }
  
  functionWithArgs(1, 2, "987b8h76");
  </code></pre>
  
  <p>I get an error message. Any suggestions please. I'm just a beginner.</p>