title: Loop Through an Object's Values and Delete Falsey Values
body: <p>I'm looking to loop through an object and delete values that are deemed to be "falsey", ie: false, null, 0, Nan, etc. </p>
  
  <p>So far, my code looks like this:</p>
  
  <pre><code>function truthyObjLoop(user) {
  var falseAnswer = undefined;
  for (var key in user) {
    if (user[key] === false) {
      falseAnswer += user[key];
      delete falseAnswer;
    }
  }
  return user;
  </code></pre>
  
  <p>}</p>
  
  <p>I know it's bugged, but I'm having a difficult time locating and fixing the issue. I'm very new to Javascript and any help is appreciated. </p>
  
  <p>Thanks.</p>