From 87cd7a4c0f210fc3b655f067bf47947d57980e03 Mon Sep 17 00:00:00 2001
From: Stuart Mitchell <stu@stuartmitchell.com>
Date: Thu, 26 Feb 2015 17:04:40 +1300
Subject: [PATCH] use lets in subscriptions in the todomvc example

---
 examples/todomvc/src/todomvc/core.cljs | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/examples/todomvc/src/todomvc/core.cljs b/examples/todomvc/src/todomvc/core.cljs
index 90c76b8..3bfb197 100644
--- a/examples/todomvc/src/todomvc/core.cljs
+++ b/examples/todomvc/src/todomvc/core.cljs
@@ -93,16 +93,18 @@
   :done
   (fn 
     [db _]
-    (reaction (->> @(subscribe [:items]) 
-                   (filter :done) 
-                   count))))
+    (let [items (subscribe [:items])]
+      (reaction (->> @items 
+                     (filter :done) 
+                     count)))))
 
 (register-sub
   :active
   (fn 
     [db _]
-    (reaction (- (count @(subscribe [:items]))
-                 @(subscribe [:done])))))
+    (let [items (subscribe [:items])
+          done (subscribe [:done])] 
+      (reaction (- (count @items) @done)))))