a href="#C5_L6" id=C5_L6></a><a href="#C5_L7" id=C5_L7></a><a href="#C5_L8" id=C5_L8></a><a href="#C5_L9" id=C5_L9></a></span></code></pre>
<p><code>const</code> declarations have an additional restriction, they are <em>constant references</em>,
they always refer to the same thing.
To use a <code>const</code> declaration you have to specify the value it refers,
and you cannot change what the declaration refers to:</p>
<pre class="language-javascript line-numbers"><code class="javascript language-javascript"