JavaScript change object value through reference/link/etc
<p>Is it possible to change object's value not directly?</p>

<p>For example</p>

<pre><code>a = {x: 5}

b = a.x
b = 100

a.x // =&gt; 5
</code></pre>

<p>I'd like to get 100, but actually, <code>a.x</code> is still 5.</p>
