ass="hl str">'.'</span> <span class="hl opt">+</span> classes<span class="hl opt">.</span><span class="hl kwd">join</span><span class="hl opt">(</span><span class="hl str">'.'</span><span class="hl opt">);</span>
      <span class="hl opt">}</span>
      <span class="hl kwa">if</span> <span class="hl opt">(</span>result<span class="hl opt">.</span>length <span class="hl opt">===</span> <span class="hl num">0</span><span class="hl opt">) {</span>
        result <span class="hl opt">=</span> <span class="hl s