Underscore js syntax error in IE 11
<p>I am using the underscore js library (<a href="http://underscorejs.org/#filter" rel="nofollow noreferrer">http://underscorejs.org/#filter</a>) for functionality in my app.</p>

<p>Everything works as expected in chrome.  However when I run the same code in IE11 I get an js error in the console</p>

<p>SCRIPT1002: Syntax error
File: OptionSrv.js, Line: 197, Column: 62</p>

<p>When I clicked the file to bring me to the error the cursor is placed on the <strong>=></strong> - is this a red herring or should there be another way of doing this which works in both chrome and IE?</p>

<p>Note if I comment out the line in IE I don't get the console error however this obviously isn't the fix that I need</p>

<pre><code>  var group = myOptions.filter(g =&gt; g.options.indexOf(option.OptionCode) &gt; -1);
</code></pre>