<span class="w"> </span><span class="p">{</span>
<span class="w">  </span><span class="k">yield</span><span class="w"> </span><span class="s1">&#39;first&#39;</span>
<span class="w">  </span><span class="k">yield</span><span class="w"> </span><span class="s1">&#39;second&#39;</span>
<span class="w">  </span><span class="k">yield</span><span class="w"> </span><span class="s1">&#39;third&#39;</span>
<span class="p">}</span>

<span class="kd">const</span><span class="w"> </span><span class="nx">gen</span><span