an><span class="token operator">:</span> Ember<span class="token punctuation">.</span><span class="token function">observer</span><span class="token punctuation">(</span><span class="token string">'fullName'</span><span class="token punctuation">,</span> <span class="token keyword">function</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
  console<span class="token punctuation">.</span><span class="token function">log</span><spa