I have some registers in a map, e.g.

{:a 5 :b 6 :c 7}

:last-edit-register :a

(defn registers []
  (let [registers @(rf/subscribe [:registers])
        last-edit-register @(rf/subscribe [:last-edit-register])]
    [:div.registers-container
     [:div.registers-header "Registers"]
     [:div.registers-list
      (when (not= registers {})
        (for [[k [name v]] (zipmap (range (count registers)) registers)]
          [:div.row {:key k}
           [:div.col-col-lg6.register-name {:key (str k "reg:name")} name]
           (if (keyword-identical? name last-edit-register)
             [:div.col-col-lg6.register-value {:id (str "reg" name) :key (str k "reg:value")
                                               :style {:background-color :yellow}}
              v]
             [:div.col-col-lg6.register-value {:id (str "reg" name) :key (str k "reg:value")} v])]))]]))