diff --git a/frontend/uxbox/util/data.cljs b/frontend/uxbox/util/data.cljs
new file mode 100644
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+++ b/frontend/uxbox/util/data.cljs
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+(ns uxbox.util.data
+  "A collection of data transformation utils.")
+
+(defn index-by
+  "Return a indexed map of the collection
+  keyed by the result of executing the getter
+  over each element of the collection."
+  [coll getter]
+  (let [data (transient {})]
+    (run! #(assoc! data (getter %) %) coll)
+    (persistent! data)))
+
+(def ^:static index-by-id #(index-by % :id))