pan class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">index</span><span class="o">++</span> <span class="o">%</span> <span class="mi">2</span> <span class="o">==</span> <span class="mi">0</span><span class="p">)</span> <span class="o">?</span> <span class="nx">Buffer</span><span class="p">.</span><span class="nx">concat</span><span class="p">(</span><span class="nx">chunk</span><span class="p">,</span> <span class="k">new</span> <span class="nx">Buffer</span><span class="