Is it possible to use the computed properties to compute another properties in Vue? : <p>If I have a two computed properties like this,</p>

<pre><code>computed: {
  id: function(){ return this.$route.query.id; },
  hasId: function(){ return this.$route.query.id !== undefined; }
}
</code></pre>

<p>how can I use <code>id</code> to compute <code>hasId</code> like this pseudo-code?</p>

<pre><code>computed: {
  id: function(){ return this.$route.query.id; },
  hasId: function(){ return id !== undefined; }
}
</code></pre>
