l-property property">firstName</span><span class="token operator">:</span> <span class="token string">'Yehuda'</span><span class="token punctuation">,</span>
  <span class="token literal-property property">lastName</span><span class="token operator">:</span> <span class="token string">'Katz'</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

<span class="token comment">// observer won't fire until `fullName` is consumed first</spa