From 8b7c04b18f73aad9a08dd57eba90101b5b2aef28 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 18 May 2023 16:00:35 +0800
Subject: [PATCH] fix(build): fix __DEV__ flag replacement edge case

close #8353
---
 rollup.config.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rollup.config.js b/rollup.config.js
index cfe334694de..7050ba437e6 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -193,7 +193,7 @@ function createConfig(format, output, plugins = []) {
     if (isBundlerESMBuild) {
       Object.assign(replacements, {
         // preserve to be handled by bundlers
-        __DEV__: `(process.env.NODE_ENV !== 'production')`
+        __DEV__: `!!(process.env.NODE_ENV !== 'production')`
       })
     }