title: Meteor: Access reactive dict variable in child template
body: <p>I need to check in a child template the value of a reactive dict variable, which was created in the parent template.</p>
  
  <pre><code>&lt;template name="parent"&gt;
      {{ &gt; child }}
  &lt;/template&gt;
  
  &lt;template name="child"&gt;
      {{#if something}}
          checked
      {{/if}}
  &lt;/template&gt;
  </code></pre>
  
  <p>This is how I initialize a reactive dict variable to the parent template:</p>
  
  <pre><code>Template.parent.onCreated(function() {
      this.blabla = new ReactiveDict();
  });
  </code></pre>
  
  <p>So for the parent template this helper is working:</p>
  
  <pre><code>Template.parent.helpers({
      anything: function(type) { return (Template.instance().blabla.get('foo') === 'bar') ? true : false; }
  });
  </code></pre>
  
  <p>But it won't work for the child:</p>
  
  <pre><code>Template.child.helpers({
      something: function() { return (Template.instance().blabla.get('foo') === 'bar') ? true : false; }
  });
  </code></pre>
  
  <p>So how can I check the value of the variable in the child helper?</p>