Even easier in Clojurescript using Hiccup https://github.com/weavejester/hiccup to render HTML:

  (def users 
   [{:firstname "john", :lastname "snow"} {:firstname "Peter", 
  :lastname "drucker"}])

  (defn my-view 
  []
  [:ul 
  (for [{:keys [firstname lastname]} users]
   [:li firstname " " lastname])])