From 477a0add41a1c04e374b578f9cf0b7c4b029d024 Mon Sep 17 00:00:00 2001
From: meihangbo <meihangbo@vip.qq.com>
Date: Wed, 3 May 2017 18:12:17 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=AD=A3=20prompt=20=E8=AE=BE?=
 =?UTF-8?q?=E7=BD=AE=E5=BC=BA=E8=A1=8C=E8=AE=BE=E7=BD=AE=E9=9D=9Einput,val?=
 =?UTF-8?q?ue.length=E6=8A=A5=E9=94=99?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

修正 prompt 设置强行设置非input,value.length报错
---
 src/layer.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/layer.js b/src/layer.js
index 0cc4e0d8..0b128cb9 100644
--- a/src/layer.js
+++ b/src/layer.js
@@ -972,7 +972,7 @@ layer.prompt = function(options, yes){
       var value = prompt.val();
       if(value === ''){
         prompt.focus();
-      } else if(value.length > (options.maxlength||500)) {
+      } else if(value&&value.length > (options.maxlength||500)) {
         layer.tips('&#x6700;&#x591A;&#x8F93;&#x5165;'+ (options.maxlength || 500) +'&#x4E2A;&#x5B57;&#x6570;', prompt, {tips: 1});
       } else {
         yes && yes(value, index, prompt);