From 3c2afab6d811faf7d597b0dbae8faae128d3c0cb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=99=88=E5=98=89=E6=B6=B5?= <chenjiahan@youzan.com>
Date: Thu, 30 Jan 2020 10:36:47 +0800
Subject: [PATCH] feat(Sticky): offset-top can be string

---
 src/sticky/README.md       | 4 ++--
 src/sticky/README.zh-CN.md | 4 ++--
 src/sticky/index.js        | 5 +++--
 3 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/sticky/README.md b/src/sticky/README.md
index 0cba4c66d..2820ddfca 100644
--- a/src/sticky/README.md
+++ b/src/sticky/README.md
@@ -56,9 +56,9 @@ export default {
 
 | Attribute | Description | Type | Default |
 |------|------|------|------|
-| offset-top | Offset top | *number* | `0` |
+| offset-top | Offset top | *number \| string* | `0` |
 | z-index | z-index when sticky | *number \| string* | `99` |
-| container | Container DOM | *HTMLElement* | - |
+| container | Container DOM | *Element* | - |
 
 ### Events
 
diff --git a/src/sticky/README.zh-CN.md b/src/sticky/README.zh-CN.md
index 9afb7e5a7..4f61d913a 100644
--- a/src/sticky/README.zh-CN.md
+++ b/src/sticky/README.zh-CN.md
@@ -66,9 +66,9 @@ export default {
 
 | 参数 | 说明 | 类型 | 默认值 |
 |------|------|------|------|
-| offset-top | 吸顶时与顶部的距离，单位`px` | *number* | `0` |
+| offset-top | 吸顶时与顶部的距离，单位`px` | *number \| string* | `0` |
 | z-index | 吸顶时的 z-index | *number \| string* | `99` |
-| container | 容器对应的 HTML 节点 | *HTMLElement* | - |
+| container | 容器对应的 HTML 节点 | *Element* | - |
 
 ### Events
 
diff --git a/src/sticky/index.js b/src/sticky/index.js
index f702fc49f..f1a496751 100644
--- a/src/sticky/index.js
+++ b/src/sticky/index.js
@@ -20,7 +20,7 @@ export default createComponent({
     zIndex: [Number, String],
     container: null,
     offsetTop: {
-      type: Number,
+      type: [Number, String],
       default: 0,
     },
   },
@@ -61,7 +61,8 @@ export default createComponent({
     onScroll() {
       this.height = this.$el.offsetHeight;
 
-      const { container, offsetTop } = this;
+      const { container } = this;
+      const offsetTop = +this.offsetTop;
       const scrollTop = getScrollTop(window);
       const topToPageTop = getElementTop(this.$el);