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    <p>You can create properties for a template instance inside of it's <em>created</em> event handler. And you can access the template instance as the second argument of the event map function.</p> <pre><code>Template.comment_item.created = function() { this.showChildren = false; }; Template.comment_item.events({ 'click .comment-content': function(event, template) { template.showChildren = true; } }); </code></pre> <p>HOWEVER:</p> <ol> <li>you cannot access your template instance and its properties from within a template helper.</li> <li>Your template helper needs to be given a "reactive" data source anyways for it to change on the spot.</li> <li>Even if you go through the trouble of creating your own reactive data source, your approach to this feature will <em>still</em> create X amount of variables for X amount of comments on the page. That seems like an awful lot of variables to have in memory to implement one feature.</li> </ol> <p>What I would suggest that you do instead is simplify your template to this:</p> <pre><code>&lt;template name="comment_item"&gt; &lt;li class="comment comment-displayed" id="{{_id}}"&gt; &lt;div class="comment-body"&gt; &lt;div class="comment-content"&gt; &lt;!-- changed this to a class --&gt; &lt;!-- some comment data here --&gt; &lt;/div&gt; &lt;/div&gt; &lt;/li&gt; &lt;/template&gt; </code></pre> <p>And then programmatically add the child comments to the comment-body in your event-handler. Keep in mind the following from the Meteor documentation:</p> <blockquote> <p>A template that you declare as <code>&lt;template name="foo"&gt; ... &lt;/template&gt;</code> can be accessed as the function Template.foo, which returns a string of HTML when called.</p> </blockquote> <p>Oh, and you pass context to a template function as a JSON object. E.g.:</p> <pre><code>var context = {_id: comment_id, text: "Comment text!"}; Template.comment_item(context); </code></pre>
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    1. COFor your second answer, could you explicitly give us the js to go with your html? I'm a newbie and I'm about to go with your first answer because I don't know how to write the js for the second one. (I'm thinking it might be something like `template.find('.comment-body').append(Template.comment_item(context))` but with some adjustment...)
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