title: Using .filter to compare two arrays and return values that aren't matched
body: <p>I'm having some issues comparing the elements of two arrays and filtering out matching values. I only want to return array elements that are NOT included within <code>wordsToRemove</code>. </p>
  
  <pre><code>var fullWordList = ['1','2','3','4','5'];
  var wordsToRemove = ['1','2','3'];
  
  var filteredKeywords = fullWordList.forEach(function(fullWordListValue) {
      wordsToRemove.filter(function(wordsToRemoveValue) {
          return fullWordListValue !== wordsToRemoveValue
      })
  });
  
  console.log(filteredKeywords);
  </code></pre>