From 1cc860807e2246a16bd00a99991fef04cdce3366 Mon Sep 17 00:00:00 2001
From: Andrey Antukh <niwi@niwi.nz>
Date: Tue, 14 Apr 2026 20:06:13 +0000
Subject: [PATCH] :zap: Use seq/next idiom in enumerate instead of empty?/rest

Replace (empty? items) + (rest items) with (seq items) + (next items)
in enumerate. The seq/next pattern is idiomatic Clojure and avoids
the overhead of empty? which internally calls seq and then negates.
---
 common/src/app/common/data.cljc | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/common/src/app/common/data.cljc b/common/src/app/common/data.cljc
index 5f4b4a0cf2..2da21aadb0 100644
--- a/common/src/app/common/data.cljc
+++ b/common/src/app/common/data.cljc
@@ -252,13 +252,13 @@
   ([items] (enumerate items 0))
   ([items start]
    (loop [idx   start
-          items items
+          items (seq items)
           res   (transient [])]
-     (if (empty? items)
-       (persistent! res)
+     (if items
        (recur (inc idx)
-              (rest items)
-              (conj! res [idx (first items)]))))))
+              (next items)
+              (conj! res [idx (first items)]))
+       (persistent! res)))))
 
 (defn group-by
   ([kf coll] (group-by kf identity [] coll))