From 4116731b5a8c24c2926130f25a60894ff1ff2428 Mon Sep 17 00:00:00 2001
From: alexlamsl <alexlamsl@gmail.com>
Date: Mon, 8 May 2017 03:57:56 +0800
Subject: [PATCH] use `[].indexOf()` instead of `switch`

---
 bin/uglifyjs | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/bin/uglifyjs b/bin/uglifyjs
index 9258c758..3aaa3280 100755
--- a/bin/uglifyjs
+++ b/bin/uglifyjs
@@ -375,15 +375,7 @@ function to_cache(key) {
     return cache[key];
 }
 
+var skip_keys = [ "cname", "enclosed", "parent_scope", "scope", "thedef", "uses_eval", "uses_with" ];
 function skip_key(key) {
-    switch (key) {
-      case "cname":
-      case "enclosed":
-      case "parent_scope":
-      case "scope":
-      case "thedef":
-      case "uses_eval":
-      case "uses_with":
-        return true;
-    }
+    return skip_keys.indexOf(key) >= 0;
 }