From 40761e2aeb30c170259e6aff1f6a5f4825269116 Mon Sep 17 00:00:00 2001
From: windy <1374721899@qq.com>
Date: Fri, 12 May 2017 16:33:33 +0800
Subject: [PATCH] getMonthDay

---
 bi/core.js             | 5 +++--
 docs/core.js           | 5 +++--
 src/core/proto/date.js | 5 +++--
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/bi/core.js b/bi/core.js
index 494b9d052..6b0896e75 100644
--- a/bi/core.js
+++ b/bi/core.js
@@ -6579,8 +6579,9 @@ Date.checkLegal = function (str) {
     if (ar.length <= 2) {
         return MM >= 1 && MM <= 12;
     }
-    Date._MD[1] = Date.isLeap(YY) ? 29 : 28;
-    return MM >= 1 && MM <= 12 && DD <= Date._MD[MM - 1];
+    var MD = Date._MD.slice(0);
+    MD[1] = Date.isLeap(YY) ? 29 : 28;
+    return MM >= 1 && MM <= 12 && DD <= MD[MM - 1];
 };
 
 Date.parseDateTime = function (str, fmt) {
diff --git a/docs/core.js b/docs/core.js
index 0bd912d24..0b43853e7 100644
--- a/docs/core.js
+++ b/docs/core.js
@@ -24062,8 +24062,9 @@ Date.checkLegal = function (str) {
     if (ar.length <= 2) {
         return MM >= 1 && MM <= 12;
     }
-    Date._MD[1] = Date.isLeap(YY) ? 29 : 28;
-    return MM >= 1 && MM <= 12 && DD <= Date._MD[MM - 1];
+    var MD = Date._MD.slice(0);
+    MD[1] = Date.isLeap(YY) ? 29 : 28;
+    return MM >= 1 && MM <= 12 && DD <= MD[MM - 1];
 };
 
 Date.parseDateTime = function (str, fmt) {
diff --git a/src/core/proto/date.js b/src/core/proto/date.js
index 36197df93..75e833c6a 100644
--- a/src/core/proto/date.js
+++ b/src/core/proto/date.js
@@ -386,8 +386,9 @@ Date.checkLegal = function (str) {
     if (ar.length <= 2) {
         return MM >= 1 && MM <= 12;
     }
-    Date._MD[1] = Date.isLeap(YY) ? 29 : 28;
-    return MM >= 1 && MM <= 12 && DD <= Date._MD[MM - 1];
+    var MD = Date._MD.slice(0);
+    MD[1] = Date.isLeap(YY) ? 29 : 28;
+    return MM >= 1 && MM <= 12 && DD <= MD[MM - 1];
 };
 
 Date.parseDateTime = function (str, fmt) {