From 108f630732cad7a12a1aecf941d171daf9d94908 Mon Sep 17 00:00:00 2001
From: Jordan Harband <ljharb@gmail.com>
Date: Sat, 4 Apr 2015 14:31:56 -0700
Subject: [PATCH] Cache the `nvm_node_prefix` call.

---
 nvm.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/nvm.sh b/nvm.sh
index 2d1a221..3723b8d 100755
--- a/nvm.sh
+++ b/nvm.sh
@@ -222,8 +222,10 @@ nvm_version() {
     return $?
   fi
 
+  local NVM_NODE_PREFIX
+  NVM_NODE_PREFIX="$(nvm_node_prefix)"
   case "_$PATTERN" in
-    "_$(nvm_node_prefix)" | "_$(nvm_node_prefix)-")
+    "_$NVM_NODE_PREFIX" | "_$NVM_NODE_PREFIX-")
       PATTERN="stable"
     ;;
   esac