title: Syntax Error only in IE
body: <p>I get a syntax error only in IE11 on this line and i can't seem to pinpoint what the issue is. Its on line two <code>quizOptions.map((item, i) =&gt; {</code></p>
  
  <p>the error is: SCRIPT1002: Syntax Error (this was the edit)</p>
  
  <p>I haven't seen any issues with this piece of code on any other browser. </p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>var quizOptions = cur_quizInfo.options;
  quizOptions.map((item, i) =&gt; {
    var li = jQuery("&lt;li&gt;", {
      class: 'quiz_answers',
      text: item
    }).appendTo(buttonList);
  });</code></pre>
  </div>
  </div>
  </p>