# HG changeset patch
# User Zachary Kanfer <zkanfer@gmail.com>
# Date 1409117923 14400
#      Wed Aug 27 01:38:43 2014 -0400
# Node ID 89ca949d358650d60836cdf76176a494ae902e69
# Parent  fe834e60ea8b39bfd779ed7183b8a418cfc1c289
Instead of using eval to get things out of the Math object, we can use aset. Solution from David at Hack and Tell. Thanks!

diff --git a/src/cljs/calculator/calculator.cljs b/src/cljs/calculator/calculator.cljs
--- a/src/cljs/calculator/calculator.cljs
+++ b/src/cljs/calculator/calculator.cljs
@@ -143,8 +143,8 @@
           (operator->function lower-operator)
           (when (or (.hasOwnProperty js/Math upper-operator)
                     (.hasOwnProperty js/Math lower-operator))
-            (let [function-or-constant (or (js/eval (str "Math." upper-operator))
-                                           (js/eval (str "Math." lower-operator)))]
+            (let [function-or-constant (or (aget js/Math upper-operator)
+                                           (aget js/Math lower-operator))]
               (cond (number? function-or-constant)
                     (constant-operation function-or-constant)
                     (fn? function-or-constant)