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    <p>There's no way to avoid some kind of nested loop. But you don't need <code>domap</code> at all, Compojure is smart enough (sometimes) to expand a seq for you. <code>list</code> and <code>map</code> and <code>for</code> are enough. For example Michał Marczyk's answer, or:</p> <pre><code>(defn map-tag [tag xs] (map (fn [x] [tag x]) xs)) (defn create-table [] (list [:h1 "Schedule"] [:hr] [:table {:style "border: 0; width: 90%"} [:tr (map-tag :th ["Name" "Mon" "Tue" "Wed" "Thu" "Fri" "Sat" "Sun"])] [:tr (for [[category people] smpl2] (list* [:tr [:td category]] (for [person people [name hours] person] [:tr [:td name] (map-tag :td hours)])))]])) </code></pre> <p>The "map over a seq and wrap everything in the same tag" pattern is common enough that I like to use a helper function for it sometimes.</p> <p>Compojure expands one level of <code>seq</code> for you. So you can throw some stuff into a <code>list</code> to get tags to appear sequentially in your HTML output, which I did to get the h1 and hr to show up. In your code, you're just throwing the h1 and hr away.</p> <p>But note that it only expands one level. When you have a list of lists, or a list of seqs, the outer seq will expand but the inner ones won't.</p> <pre><code>user&gt; (println (html (list [:div "foo"] (for [x [1 2 3]] [:div x])))) &lt;div&gt;foo&lt;/div&gt;clojure.lang.LazySeq@ea73bbfd </code></pre> <p>See how the inner seq makes Compojure barf. Look into <code>compojure.html.gen/expand-seqs</code> to see how this works, or change/fix it if you care to.</p> <p>This can be an issue when you have nested <code>for</code> or a <code>for</code> in a <code>list</code>, since <code>for</code> returns a lazy seq. But you just have to avoid having a seq-in-a-seq. I use <code>list*</code> above. A combination of <code>list</code> and <code>html</code> would work too. There are lots of other ways.</p> <pre><code>user&gt; (println (html (list* [:div "foo"] (for [x [1 2 3]] [:div x])))) &lt;div&gt;foo&lt;/div&gt;&lt;div&gt;1&lt;/div&gt;&lt;div&gt;2&lt;/div&gt;&lt;div&gt;3&lt;/div&gt; user&gt; (println (html (list [:div "foo"] (html (for [x [1 2 3]] [:div x]))))) &lt;div&gt;foo&lt;/div&gt;&lt;div&gt;1&lt;/div&gt;&lt;div&gt;2&lt;/div&gt;&lt;div&gt;3&lt;/div&gt; </code></pre>
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    1. COWow thanks, I really like the map-tag helper function idea, and you've made me research list* (which I didn't know existed either)
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