/><span class="s2">"use strict"</span><span class="p">;</span><br/><span class="kd">var</span> <span class="nx">a</span><span class="p">;</span><br/><span class="nx">f</span><span class="p">();</span><br/><br/><span class="c1">// Comments can describe variables.</span><br/><span class="kd">function</span> <span class="nx">doSomething</span><span class="p">()</span> <span class="p">{</span><br/>    <span class="c1">// this is the first var.</span><br/>    <span class="kd">var</span> <span class="nx">first</s