">isArray</span><span class="p">(</span><span class="nx">node</span><span class="p">[</span><span class="nx">key</span><span class="p">]))</span><span class="w"> </span><span class="p">{</span>
<span class="w">        </span><span class="nx">node</span><span class="p">[</span><span class="nx">key</span><span class="p">].</span><span class="nx">forEach</span><span class="p">(</span><span class="nx">child</span><span class="w"> </span><span class="p">=&gt;</span><span class="w"> </span><span class="p">{</span