From b68ac32325441c1128ff181683b98cc9eb0ee10f Mon Sep 17 00:00:00 2001
From: neverland <chenjiahan@buaa.edu.cn>
Date: Tue, 29 May 2018 17:26:58 +0800
Subject: [PATCH] [Improvement] SubmitBar: optimize render (#1184)

---
 packages/submit-bar/index.vue                             | 2 +-
 packages/submit-bar/test/__snapshots__/demo.spec.js.snap  | 6 ++----
 packages/submit-bar/test/__snapshots__/index.spec.js.snap | 3 +--
 3 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/packages/submit-bar/index.vue b/packages/submit-bar/index.vue
index 648880a8e..b8cf75af4 100644
--- a/packages/submit-bar/index.vue
+++ b/packages/submit-bar/index.vue
@@ -1,6 +1,6 @@
 <template>
   <div :class="b()">
-    <div :class="b('tip')" v-show="tip || $slots.tip">
+    <div :class="b('tip')" v-if="tip || $slots.tip">
       {{ tip }}<slot name="tip" />
     </div>
     <div :class="b('bar')">
diff --git a/packages/submit-bar/test/__snapshots__/demo.spec.js.snap b/packages/submit-bar/test/__snapshots__/demo.spec.js.snap
index 9f3703600..fb252edf2 100644
--- a/packages/submit-bar/test/__snapshots__/demo.spec.js.snap
+++ b/packages/submit-bar/test/__snapshots__/demo.spec.js.snap
@@ -4,8 +4,7 @@ exports[`renders demo correctly 1`] = `
 <div>
   <div>
     <div class="van-submit-bar">
-      <div class="van-submit-bar__tip" style="display:none;">
-      </div>
+      <!---->
       <div class="van-submit-bar__bar">
         <div class="van-submit-bar__price"><span>合计：</span> <span class="van-submit-bar__price-integer">¥30.</span> <span class="van-submit-bar__price-decimal">50</span></div>
         <button class="van-button van-button--danger van-button--normal">
@@ -30,8 +29,7 @@ exports[`renders demo correctly 1`] = `
   </div>
   <div>
     <div class="van-submit-bar">
-      <div class="van-submit-bar__tip" style="display:none;">
-      </div>
+      <!---->
       <div class="van-submit-bar__bar">
         <div class="van-submit-bar__price"><span>合计：</span> <span class="van-submit-bar__price-integer">¥30.</span> <span class="van-submit-bar__price-decimal">50</span></div>
         <button class="van-button van-button--danger van-button--normal van-button--loading van-button--unclickable">
diff --git a/packages/submit-bar/test/__snapshots__/index.spec.js.snap b/packages/submit-bar/test/__snapshots__/index.spec.js.snap
index a495dfe26..5e6222a1c 100644
--- a/packages/submit-bar/test/__snapshots__/index.spec.js.snap
+++ b/packages/submit-bar/test/__snapshots__/index.spec.js.snap
@@ -2,8 +2,7 @@
 
 exports[`submit 1`] = `
 <div class="van-submit-bar">
-  <div class="van-submit-bar__tip" style="display: none;">
-  </div>
+  <!---->
   <div class="van-submit-bar__bar">
     <div class="van-submit-bar__price"><span>合计：</span> <span class="van-submit-bar__price-integer">¥0.</span> <span class="van-submit-bar__price-decimal">00</span></div>
     <button disabled="disabled" class="van-button van-button--danger van-button--normal van-button--disabled van-button--unclickable">