ring">'description'</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// "William Rogers; Age: 80; Country: USA"</span>
<span aria-hidden="true" class="line-numbers-rows"><a href="#C7_L1" id=C7_L1></a><a href="#C7_L2" id=C7_L2></a><a href="#C7_L3" id=C7_L3></a></span></code></pre>
<p>So this change to <code>firstName</code> was observed by <code>fullName</code> computed property, which was itself observed by the <code>description</code> proper