From cccdb42fbd5f23384058d4d374f0b655a56606f0 Mon Sep 17 00:00:00 2001
From: Josh Thomas <jthoms1@gmail.com>
Date: Tue, 17 Apr 2018 13:53:07 -0500
Subject: [PATCH] chore(): change usage of Build.isDev so that buble does not
 act out.

---
 core/src/components/nav/nav.tsx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/core/src/components/nav/nav.tsx b/core/src/components/nav/nav.tsx
index 9151be2a39..0536c29cbd 100644
--- a/core/src/components/nav/nav.tsx
+++ b/core/src/components/nav/nav.tsx
@@ -48,10 +48,11 @@ export class Nav implements NavOutlet {
   @Prop() root: NavComponent|undefined;
   @Watch('root')
   rootChanged() {
+    const isDev = Build.isDev;
     if (this.root) {
       if (!this.useRouter) {
         this.setRoot(this.root, this.rootParams);
-      } else if (Build.isDev) {
+      } else if (isDev) {
         console.warn('<ion-nav> does not support a root attribute when using ion-router.');
       }
     }