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    copied!<p>Expressions shouldn't use escaping:</p> <pre><code>- if (episode[question.name][field]) foo </code></pre> <p>(Assuming proper variable setup, obviously.)</p> <hr> <p><em>Edit to respond to comment</em></p> <p>You're not checking to see if the element exists first before trying to read the field, in both the date display and the input element... While your usecase is a bit opaque still, you need to check for the element first:</p> <pre><code>- if (episode[question.name] &amp;&amp; episode[question.name][field])", </code></pre> <p>I <em>think</em> you're trying to show an input element for things without values, and display it otherwise--not quite sure. You may want something closer to this (w/o knowing what you're doing, I made a fake template w/ what I think mirrors your data--I commented the <code>"2-PT"</code> value out to test). Some minor refactoring to clean things up, but not much.</p> <pre><code>var s = [ "ol#questions", " each question in questions", " li", " ul.question", " li: h3 (#{question.name}) #{question.description}", " if question.fields", " each field, i in question.fields", " - var foo = field === 'Date' ? 'date' : ''", " p(class='#{foo}')", " if episode[question.name]", " - var field_value = episode[question.name][field] || '' ", " if field_value", " #{field_value}", " else", " input(name='episode[#{question.name}][#{field}]', class='', value='#{field_value}')", "" ].join("\n"); var locals = { "question": { "name": "M00104" }, "episode": { "M00104": { // "2-PT": "on", "Date": "2012-01-02" } }, "questions": [ { "name": "M00104", "description": "Do we have it?", "fields": ["Date", "2-PT"] }, ] } var jade = require('jade'); var fn = jade.compile(s); console.log(fn(locals)); </code></pre> <p>After tidying:</p> <pre><code>&lt;ol id="questions"&gt; &lt;li&gt; &lt;ul class="question"&gt; &lt;li&gt; &lt;h3&gt;(M00104) Do we have it?&lt;/h3&gt; &lt;/li&gt; &lt;li style="list-style: none; display: inline"&gt; &lt;p class="date"&gt;2012-01-02&lt;/p&gt; &lt;p class=""&gt;on&lt;/p&gt; &lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;/ol&gt; </code></pre> <p>With the <code>"2-PT"</code> line commented out:</p> <pre><code>&lt;p class=""&gt;&lt;input name="episode[M00104][2-PT]" value="" class=""&gt;&lt;/p&gt; </code></pre>
 

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