diff --git a/.editorconfig b/.editorconfig
index ea6e20f5..3454886e 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -1,4 +1,4 @@
-# http://editorconfig.org
+# https://editorconfig.org
 root = true
 
 [*]
diff --git a/README.md b/README.md
index 48599a7e..01034b51 100644
--- a/README.md
+++ b/README.md
@@ -30,11 +30,11 @@ English | [简体中文](./README.zh-CN.md)
 
 ## Introduction
 
-[vue-element-admin](http://panjiachen.github.io/vue-element-admin) is a production-ready front-end solution for admin interfaces. It based on [vue](https://github.com/vuejs/vue) and use the UI Toolkit [element-ui](https://github.com/ElemeFE/element).
+[vue-element-admin](https://panjiachen.github.io/vue-element-admin) is a production-ready front-end solution for admin interfaces. It based on [vue](https://github.com/vuejs/vue) and use the UI Toolkit [element-ui](https://github.com/ElemeFE/element).
 
 It is a magical vue admin based on the newest development stack of vue, built-in i18n solution, typical templates for enterprise applications, lots of awesome features. It helps you build a large complex Single-Page Applications. I believe whatever your needs are, this project will help you.
 
-- [Preview](http://panjiachen.github.io/vue-element-admin)
+- [Preview](https://panjiachen.github.io/vue-element-admin)
 
 - [Documentation](https://panjiachen.github.io/vue-element-admin-site/)
 
@@ -50,13 +50,13 @@ It is a magical vue admin based on the newest development stack of vue, built-in
 - Desktop: [electron-vue-admin](https://github.com/PanJiaChen/electron-vue-admin)
 - Typescript: [vue-typescript-admin-template](https://github.com/Armour/vue-typescript-admin-template) (Credits: [@Armour](https://github.com/Armour))
 
-**The current version is `4.0-beta`. If you find a problem, please put [issue](https://github.com/PanJiaChen/vue-element-admin/issues/new). If you want to use the old version - stable version, you can switch branch to [tag/3.11.0](https://github.com/PanJiaChen/vue-element-admin/tree/tag/3.11.0)**
+**The current version is `v4.0+` build on `vue-cli`. If you find a problem, please put [issue](https://github.com/PanJiaChen/vue-element-admin/issues/new). If you want to use the old version , you can switch branch to [tag/3.11.0](https://github.com/PanJiaChen/vue-element-admin/tree/tag/3.11.0), it does not rely on `vue-cli'**
 
 **This project does not support low version browsers (e.g. IE). Please add polyfill by yourself.**
 
 ## Preparation
 
-You need to install [node](http://nodejs.org/) and [git](https://git-scm.com/) locally. The project is based on [ES2015+](http://es6.ruanyifeng.com/), [vue](https://cn.vuejs.org/index.html), [vuex](https://vuex.vuejs.org/zh-cn/), [vue-router](https://router.vuejs.org/zh-cn/), [vue-cli](https://github.com/vuejs/vue-cli) , [axios](https://github.com/axios/axios) and [element-ui](https://github.com/ElemeFE/element), all request data is simulated using [Mock.js](https://github.com/nuysoft/Mock).
+You need to install [node](https://nodejs.org/) and [git](https://git-scm.com/) locally. The project is based on [ES2015+](https://es6.ruanyifeng.com/), [vue](https://cn.vuejs.org/index.html), [vuex](https://vuex.vuejs.org/zh-cn/), [vue-router](https://router.vuejs.org/zh-cn/), [vue-cli](https://github.com/vuejs/vue-cli) , [axios](https://github.com/axios/axios) and [element-ui](https://github.com/ElemeFE/element), all request data is simulated using [Mock.js](https://github.com/nuysoft/Mock).
 Understanding and learning this knowledge in advance will greatly help the use of this project.
 
  <p align="center">
@@ -187,7 +187,7 @@ Detailed changes for each release are documented in the [release notes](https://
 
 ## Online Demo
 
-[Preview](http://panjiachen.github.io/vue-element-admin)
+[Preview](https://panjiachen.github.io/vue-element-admin)
 
 ## Donate
 
@@ -203,7 +203,7 @@ If you find this project useful, you can buy author a glass of juice :tropical_d
 
 Modern browsers and Internet Explorer 10+.
 
-| [<img src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/edge/edge_48x48.png" alt="IE / Edge" width="24px" height="24px" />](http://godban.github.io/browsers-support-badges/)</br>IE / Edge | [<img src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/firefox/firefox_48x48.png" alt="Firefox" width="24px" height="24px" />](http://godban.github.io/browsers-support-badges/)</br>Firefox | [<img src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/chrome/chrome_48x48.png" alt="Chrome" width="24px" height="24px" />](http://godban.github.io/browsers-support-badges/)</br>Chrome | [<img src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/safari/safari_48x48.png" alt="Safari" width="24px" height="24px" />](http://godban.github.io/browsers-support-badges/)</br>Safari |
+| [<img src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/edge/edge_48x48.png" alt="IE / Edge" width="24px" height="24px" />](https://godban.github.io/browsers-support-badges/)</br>IE / Edge | [<img src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/firefox/firefox_48x48.png" alt="Firefox" width="24px" height="24px" />](https://godban.github.io/browsers-support-badges/)</br>Firefox | [<img src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/chrome/chrome_48x48.png" alt="Chrome" width="24px" height="24px" />](https://godban.github.io/browsers-support-badges/)</br>Chrome | [<img src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/safari/safari_48x48.png" alt="Safari" width="24px" height="24px" />](https://godban.github.io/browsers-support-badges/)</br>Safari |
 | --------- | --------- | --------- | --------- |
 | IE10, IE11, Edge| last 2 versions| last 2 versions| last 2 versions
 
diff --git a/README.zh-CN.md b/README.zh-CN.md
index e0ec09bb..0e15d8a4 100644
--- a/README.zh-CN.md
+++ b/README.zh-CN.md
@@ -30,9 +30,9 @@
 
 ## 简介
 
-[vue-element-admin](http://panjiachen.github.io/vue-element-admin) 是一个后台前端解决方案，它基于 [vue](https://github.com/vuejs/vue) 和 [element-ui](https://github.com/ElemeFE/element)实现。它使用了最新的前端技术栈，内置了 i18n 国际化解决方案，动态路由，权限验证，提炼了典型的业务模型，提供了丰富的功能组件，它可以帮助你快速搭建企业级中后台产品原型。相信不管你的需求是什么，本项目都能帮助到你。
+[vue-element-admin](https://panjiachen.github.io/vue-element-admin) 是一个后台前端解决方案，它基于 [vue](https://github.com/vuejs/vue) 和 [element-ui](https://github.com/ElemeFE/element)实现。它使用了最新的前端技术栈，内置了 i18n 国际化解决方案，动态路由，权限验证，提炼了典型的业务模型，提供了丰富的功能组件，它可以帮助你快速搭建企业级中后台产品原型。相信不管你的需求是什么，本项目都能帮助到你。
 
-- [在线预览](http://panjiachen.github.io/vue-element-admin)
+- [在线预览](https://panjiachen.github.io/vue-element-admin)
 
 - [使用文档](https://panjiachen.github.io/vue-element-admin-site/zh/)
 
@@ -50,7 +50,7 @@
 - 桌面端: [electron-vue-admin](https://github.com/PanJiaChen/electron-vue-admin)
 - Typescript 版: [vue-typescript-admin-template](https://github.com/Armour/vue-typescript-admin-template) (鸣谢: [@Armour](https://github.com/Armour))
 
-**目前版本为 `4.0-beta`，若发现问题，欢迎提[issue](https://github.com/PanJiaChen/vue-element-admin/issues/new)。若你想使用旧版本-稳定版，可以切换分支到[tag/3.11.0](https://github.com/PanJiaChen/vue-element-admin/tree/tag/3.11.0)**
+**目前版本为 `v4.0+` 基于 `vue-cli` 进行构建，若发现问题，欢迎提[issue](https://github.com/PanJiaChen/vue-element-admin/issues/new)。若你想使用旧版本，可以切换分支到[tag/3.11.0](https://github.com/PanJiaChen/vue-element-admin/tree/tag/3.11.0)，它不依赖 `vue-cli`**
 
 **该项目不支持低版本浏览器(如 ie)，有需求请自行添加 polyfill [详情](https://github.com/PanJiaChen/vue-element-admin/wiki#babel-polyfill)**
 
@@ -204,7 +204,7 @@ Detailed changes for each release are documented in the [release notes](https://
 
 ## Online Demo
 
-[在线 Demo](http://panjiachen.github.io/vue-element-admin)
+[在线 Demo](https://panjiachen.github.io/vue-element-admin)
 
 ## Donate
 
@@ -221,7 +221,7 @@ Detailed changes for each release are documented in the [release notes](https://
 
 Modern browsers and Internet Explorer 10+.
 
-| [<img src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/edge/edge_48x48.png" alt="IE / Edge" width="24px" height="24px" />](http://godban.github.io/browsers-support-badges/)</br>IE / Edge | [<img src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/firefox/firefox_48x48.png" alt="Firefox" width="24px" height="24px" />](http://godban.github.io/browsers-support-badges/)</br>Firefox | [<img src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/chrome/chrome_48x48.png" alt="Chrome" width="24px" height="24px" />](http://godban.github.io/browsers-support-badges/)</br>Chrome | [<img src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/safari/safari_48x48.png" alt="Safari" width="24px" height="24px" />](http://godban.github.io/browsers-support-badges/)</br>Safari |
+| [<img src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/edge/edge_48x48.png" alt="IE / Edge" width="24px" height="24px" />](https://godban.github.io/browsers-support-badges/)</br>IE / Edge | [<img src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/firefox/firefox_48x48.png" alt="Firefox" width="24px" height="24px" />](https://godban.github.io/browsers-support-badges/)</br>Firefox | [<img src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/chrome/chrome_48x48.png" alt="Chrome" width="24px" height="24px" />](https://godban.github.io/browsers-support-badges/)</br>Chrome | [<img src="https://raw.githubusercontent.com/alrra/browser-logos/master/src/safari/safari_48x48.png" alt="Safari" width="24px" height="24px" />](https://godban.github.io/browsers-support-badges/)</br>Safari |
 | --------- | --------- | --------- | --------- |
 | IE10, IE11, Edge| last 2 versions| last 2 versions| last 2 versions
 
diff --git a/mock/mock-server.js b/mock/mock-server.js
index af7e67ee..b29b7c3f 100644
--- a/mock/mock-server.js
+++ b/mock/mock-server.js
@@ -3,16 +3,16 @@ const bodyParser = require('body-parser')
 const chalk = require('chalk')
 
 function registerRoutes(app) {
-  let mockStartIndex
+  let mockLastIndex
   const { default: mocks } = require('./index.js')
   for (const mock of mocks) {
     app[mock.type](mock.url, mock.response)
-    mockStartIndex = app._router.stack.length
+    mockLastIndex = app._router.stack.length
   }
   const mockRoutesLength = Object.keys(mocks).length
   return {
     mockRoutesLength: mockRoutesLength,
-    mockStartIndex: mockStartIndex - mockRoutesLength
+    mockStartIndex: mockLastIndex - mockRoutesLength
   }
 }
 
@@ -29,7 +29,7 @@ module.exports = app => {
   require('@babel/register')
 
   // parse app.body
-  // http://expressjs.com/en/4x/api.html#req.body
+  // https://expressjs.com/en/4x/api.html#req.body
   app.use(bodyParser.json())
   app.use(bodyParser.urlencoded({
     extended: true
diff --git a/src/components/Charts/Keyboard.vue b/src/components/Charts/Keyboard.vue
index 3f061bd0..0b258f36 100644
--- a/src/components/Charts/Keyboard.vue
+++ b/src/components/Charts/Keyboard.vue
@@ -53,103 +53,102 @@ export default {
         data.push((Math.sin(i / 5) * (i / 5 - 10) + i / 6) * 5)
         data2.push((Math.sin(i / 5) * (i / 5 + 10) + i / 6) * 3)
       }
-      this.chart.setOption(
-        {
-          backgroundColor: '#08263a',
-          grid: {
-            left: '5%',
-            right: '5%'
-          },
-          xAxis: [{
-            show: false,
-            data: xAxisData
-          }, {
-            show: false,
-            data: xAxisData
-          }],
-          visualMap: {
-            show: false,
-            min: 0,
-            max: 50,
-            dimension: 0,
-            inRange: {
-              color: ['#4a657a', '#308e92', '#b1cfa5', '#f5d69f', '#f5898b', '#ef5055']
-            }
-          },
-          yAxis: {
-            axisLine: {
-              show: false
-            },
-            axisLabel: {
-              textStyle: {
-                color: '#4a657a'
-              }
-            },
-            splitLine: {
-              show: true,
-              lineStyle: {
-                color: '#08263f'
-              }
-            },
-            axisTick: {
-              show: false
-            }
-          },
-          series: [{
-            name: 'back',
-            type: 'bar',
-            data: data2,
-            z: 1,
-            itemStyle: {
-              normal: {
-                opacity: 0.4,
-                barBorderRadius: 5,
-                shadowBlur: 3,
-                shadowColor: '#111'
-              }
-            }
-          }, {
-            name: 'Simulate Shadow',
-            type: 'line',
-            data,
-            z: 2,
-            showSymbol: false,
-            animationDelay: 0,
-            animationEasing: 'linear',
-            animationDuration: 1200,
-            lineStyle: {
-              normal: {
-                color: 'transparent'
-              }
-            },
-            areaStyle: {
-              normal: {
-                color: '#08263a',
-                shadowBlur: 50,
-                shadowColor: '#000'
-              }
-            }
-          }, {
-            name: 'front',
-            type: 'bar',
-            data,
-            xAxisIndex: 1,
-            z: 3,
-            itemStyle: {
-              normal: {
-                barBorderRadius: 5
-              }
-            }
-          }],
-          animationEasing: 'elasticOut',
-          animationEasingUpdate: 'elasticOut',
-          animationDelay(idx) {
-            return idx * 20
-          },
-          animationDelayUpdate(idx) {
-            return idx * 20
+      this.chart.setOption({
+        backgroundColor: '#08263a',
+        grid: {
+          left: '5%',
+          right: '5%'
+        },
+        xAxis: [{
+          show: false,
+          data: xAxisData
+        }, {
+          show: false,
+          data: xAxisData
+        }],
+        visualMap: {
+          show: false,
+          min: 0,
+          max: 50,
+          dimension: 0,
+          inRange: {
+            color: ['#4a657a', '#308e92', '#b1cfa5', '#f5d69f', '#f5898b', '#ef5055']
           }
-        })
+        },
+        yAxis: {
+          axisLine: {
+            show: false
+          },
+          axisLabel: {
+            textStyle: {
+              color: '#4a657a'
+            }
+          },
+          splitLine: {
+            show: true,
+            lineStyle: {
+              color: '#08263f'
+            }
+          },
+          axisTick: {
+            show: false
+          }
+        },
+        series: [{
+          name: 'back',
+          type: 'bar',
+          data: data2,
+          z: 1,
+          itemStyle: {
+            normal: {
+              opacity: 0.4,
+              barBorderRadius: 5,
+              shadowBlur: 3,
+              shadowColor: '#111'
+            }
+          }
+        }, {
+          name: 'Simulate Shadow',
+          type: 'line',
+          data,
+          z: 2,
+          showSymbol: false,
+          animationDelay: 0,
+          animationEasing: 'linear',
+          animationDuration: 1200,
+          lineStyle: {
+            normal: {
+              color: 'transparent'
+            }
+          },
+          areaStyle: {
+            normal: {
+              color: '#08263a',
+              shadowBlur: 50,
+              shadowColor: '#000'
+            }
+          }
+        }, {
+          name: 'front',
+          type: 'bar',
+          data,
+          xAxisIndex: 1,
+          z: 3,
+          itemStyle: {
+            normal: {
+              barBorderRadius: 5
+            }
+          }
+        }],
+        animationEasing: 'elasticOut',
+        animationEasingUpdate: 'elasticOut',
+        animationDelay(idx) {
+          return idx * 20
+        },
+        animationDelayUpdate(idx) {
+          return idx * 20
+        }
+      })
     }
   }
 }
diff --git a/src/components/DragSelect/index.vue b/src/components/DragSelect/index.vue
index 4a2e6300..28256a8b 100644
--- a/src/components/DragSelect/index.vue
+++ b/src/components/DragSelect/index.vue
@@ -49,13 +49,13 @@ export default {
 </script>
 
 <style scoped>
-.drag-select >>> .sortable-ghost{
+.drag-select >>> .sortable-ghost {
   opacity: .8;
   color: #fff!important;
   background: #42b983!important;
 }
 
-.drag-select >>> .el-tag{
+.drag-select >>> .el-tag {
   cursor: pointer;
 }
 </style>
diff --git a/src/filters/index.js b/src/filters/index.js
index b164513a..86e768d8 100644
--- a/src/filters/index.js
+++ b/src/filters/index.js
@@ -1,6 +1,12 @@
 // set function parseTime,formatTime to filter
 export { parseTime, formatTime } from '@/utils'
 
+/**
+ * Show plural label if time is plural number
+ * @param {number} time
+ * @param {string} label
+ * @return {string}
+ */
 function pluralize(time, label) {
   if (time === 1) {
     return time + label
@@ -8,6 +14,9 @@ function pluralize(time, label) {
   return time + label + 's'
 }
 
+/**
+ * @param {number} time
+ */
 export function timeAgo(time) {
   const between = Date.now() / 1000 - Number(time)
   if (between < 3600) {
@@ -19,7 +28,12 @@ export function timeAgo(time) {
   }
 }
 
-/* 数字 格式化*/
+/**
+ * Number formatting
+ * like 10000 => 10k
+ * @param {number} num
+ * @param {number} digits
+ */
 export function numberFormatter(num, digits) {
   const si = [
     { value: 1E18, symbol: 'E' },
@@ -37,6 +51,10 @@ export function numberFormatter(num, digits) {
   return num.toString()
 }
 
+/**
+ * 10000 => "10,000"
+ * @param {number} num
+ */
 export function toThousandFilter(num) {
   return (+num || 0).toString().replace(/^-?\d+/g, m => m.replace(/(?=(?!\b)(\d{3})+$)/g, ','))
 }
diff --git a/src/layout/components/index.js b/src/layout/components/index.js
index e9f79ddd..104bd3ac 100644
--- a/src/layout/components/index.js
+++ b/src/layout/components/index.js
@@ -1,5 +1,5 @@
+export { default as AppMain } from './AppMain'
 export { default as Navbar } from './Navbar'
+export { default as Settings } from './Settings'
 export { default as Sidebar } from './Sidebar/index.vue'
 export { default as TagsView } from './TagsView/index.vue'
-export { default as AppMain } from './AppMain'
-export { default as Settings } from './Settings'
diff --git a/src/layout/index.vue b/src/layout/index.vue
index ec6df90c..965bcd1b 100644
--- a/src/layout/index.vue
+++ b/src/layout/index.vue
@@ -17,19 +17,19 @@
 
 <script>
 import RightPanel from '@/components/RightPanel'
-import { Navbar, Sidebar, AppMain, TagsView, Settings } from './components'
+import { AppMain, Navbar, Settings, Sidebar, TagsView } from './components'
 import ResizeMixin from './mixin/ResizeHandler'
 import { mapState } from 'vuex'
 
 export default {
   name: 'Layout',
   components: {
-    RightPanel,
-    Navbar,
-    Sidebar,
     AppMain,
-    TagsView,
-    Settings
+    Navbar,
+    RightPanel,
+    Settings,
+    Sidebar,
+    TagsView
   },
   mixins: [ResizeMixin],
   computed: {
diff --git a/src/utils/index.js b/src/utils/index.js
index bfff4dda..c0ee5026 100644
--- a/src/utils/index.js
+++ b/src/utils/index.js
@@ -2,6 +2,12 @@
  * Created by jiachenpan on 16/11/18.
  */
 
+/**
+ * Parse the time to string
+ * @param {(Object|string|number)} time
+ * @param {string} cFormat
+ * @returns {string}
+ */
 export function parseTime(time, cFormat) {
   if (arguments.length === 0) {
     return null
@@ -40,6 +46,11 @@ export function parseTime(time, cFormat) {
   return time_str
 }
 
+/**
+ * @param {number} time
+ * @param {string} option
+ * @returns {string}
+ */
 export function formatTime(time, option) {
   if (('' + time).length === 10) {
     time = parseInt(time) * 1000
@@ -78,7 +89,10 @@ export function formatTime(time, option) {
   }
 }
 
-// 格式化时间
+/**
+ * @param {string} url
+ * @returns {Object}
+ */
 export function getQueryObject(url) {
   url = url == null ? window.location.href : url
   const search = url.substring(url.lastIndexOf('?') + 1)
@@ -95,7 +109,7 @@ export function getQueryObject(url) {
 }
 
 /**
- * @param {Sting} input value
+ * @param {string} input value
  * @returns {number} output value
  */
 export function byteLength(str) {
@@ -110,6 +124,10 @@ export function byteLength(str) {
   return s
 }
 
+/**
+ * @param {Array} actual
+ * @returns {Array}
+ */
 export function cleanArray(actual) {
   const newArray = []
   for (let i = 0; i < actual.length; i++) {
@@ -120,6 +138,10 @@ export function cleanArray(actual) {
   return newArray
 }
 
+/**
+ * @param {Object} json
+ * @returns {Array}
+ */
 export function param(json) {
   if (!json) return ''
   return cleanArray(
@@ -130,6 +152,10 @@ export function param(json) {
   ).join('&')
 }
 
+/**
+ * @param {string} url
+ * @returns {Object}
+ */
 export function param2Obj(url) {
   const search = url.split('?')[1]
   if (!search) {
@@ -146,16 +172,23 @@ export function param2Obj(url) {
   )
 }
 
+/**
+ * @param {string} val
+ * @returns {string}
+ */
 export function html2Text(val) {
   const div = document.createElement('div')
   div.innerHTML = val
   return div.textContent || div.innerText
 }
 
+/**
+ * Merges two objects, giving the last one precedence
+ * @param {Object} target
+ * @param {(Object|Array)} source
+ * @returns {Object}
+ */
 export function objectMerge(target, source) {
-  /* Merges two  objects,
-     giving the last one precedence */
-
   if (typeof target !== 'object') {
     target = {}
   }
@@ -173,6 +206,10 @@ export function objectMerge(target, source) {
   return target
 }
 
+/**
+ * @param {HTMLElement} element
+ * @param {string} className
+ */
 export function toggleClass(element, className) {
   if (!element || !className) {
     return
@@ -189,45 +226,10 @@ export function toggleClass(element, className) {
   element.className = classString
 }
 
-export const pickerOptions = [
-  {
-    text: '今天',
-    onClick(picker) {
-      const end = new Date()
-      const start = new Date(new Date().toDateString())
-      end.setTime(start.getTime())
-      picker.$emit('pick', [start, end])
-    }
-  },
-  {
-    text: '最近一周',
-    onClick(picker) {
-      const end = new Date(new Date().toDateString())
-      const start = new Date()
-      start.setTime(end.getTime() - 3600 * 1000 * 24 * 7)
-      picker.$emit('pick', [start, end])
-    }
-  },
-  {
-    text: '最近一个月',
-    onClick(picker) {
-      const end = new Date(new Date().toDateString())
-      const start = new Date()
-      start.setTime(start.getTime() - 3600 * 1000 * 24 * 30)
-      picker.$emit('pick', [start, end])
-    }
-  },
-  {
-    text: '最近三个月',
-    onClick(picker) {
-      const end = new Date(new Date().toDateString())
-      const start = new Date()
-      start.setTime(start.getTime() - 3600 * 1000 * 24 * 90)
-      picker.$emit('pick', [start, end])
-    }
-  }
-]
-
+/**
+ * @param {string} type
+ * @returns {Date}
+ */
 export function getTime(type) {
   if (type === 'start') {
     return new Date().getTime() - 3600 * 1000 * 24 * 90
@@ -236,6 +238,12 @@ export function getTime(type) {
   }
 }
 
+/**
+ * @param {Function} func
+ * @param {number} wait
+ * @param {boolean} immediate
+ * @return {*}
+ */
 export function debounce(func, wait, immediate) {
   let timeout, args, context, timestamp, result
 
@@ -275,6 +283,8 @@ export function debounce(func, wait, immediate) {
  * This is just a simple version of deep copy
  * Has a lot of edge cases bug
  * If you want to use a perfect deep copy, use lodash's _.cloneDeep
+ * @param {Object} source
+ * @returns {Object}
  */
 export function deepClone(source) {
   if (!source && typeof source !== 'object') {
@@ -291,22 +301,47 @@ export function deepClone(source) {
   return targetObj
 }
 
+/**
+ * @param {Array} arr
+ * @returns {Array}
+ */
 export function uniqueArr(arr) {
   return Array.from(new Set(arr))
 }
 
+/**
+ * @returns {string}
+ */
 export function createUniqueString() {
   const timestamp = +new Date() + ''
   const randomNum = parseInt((1 + Math.random()) * 65536) + ''
   return (+(randomNum + timestamp)).toString(32)
 }
 
+/**
+ * Check if an element has a class
+ * @param {HTMLElement} elm
+ * @param {string} cls
+ * @returns {boolean}
+ */
 export function hasClass(ele, cls) {
   return !!ele.className.match(new RegExp('(\\s|^)' + cls + '(\\s|$)'))
 }
+
+/**
+ * Add class to element
+ * @param {HTMLElement} elm
+ * @param {string} cls
+ */
 export function addClass(ele, cls) {
   if (!hasClass(ele, cls)) ele.className += ' ' + cls
 }
+
+/**
+ * Remove class from element
+ * @param {HTMLElement} elm
+ * @param {string} cls
+ */
 export function removeClass(ele, cls) {
   if (hasClass(ele, cls)) {
     const reg = new RegExp('(\\s|^)' + cls + '(\\s|$)')
diff --git a/src/utils/open-window.js b/src/utils/open-window.js
index b63dfbb4..657bd190 100644
--- a/src/utils/open-window.js
+++ b/src/utils/open-window.js
@@ -5,7 +5,6 @@
  * @param {Number} w
  * @param {Number} h
  */
-
 export default function openWindow(url, title, w, h) {
   // Fixes dual-screen position                            Most browsers       Firefox
   const dualScreenLeft = window.screenLeft !== undefined ? window.screenLeft : screen.left
diff --git a/src/utils/scroll-to.js b/src/utils/scroll-to.js
index 8affede6..c5d8e04e 100644
--- a/src/utils/scroll-to.js
+++ b/src/utils/scroll-to.js
@@ -12,7 +12,10 @@ var requestAnimFrame = (function() {
   return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || function(callback) { window.setTimeout(callback, 1000 / 60) }
 })()
 
-// because it's so fucking difficult to detect the scrolling element, just move them all
+/**
+ * Because it's so fucking difficult to detect the scrolling element, just move them all
+ * @param {number} amount
+ */
 function move(amount) {
   document.documentElement.scrollTop = amount
   document.body.parentNode.scrollTop = amount
@@ -23,6 +26,11 @@ function position() {
   return document.documentElement.scrollTop || document.body.parentNode.scrollTop || document.body.scrollTop
 }
 
+/**
+ * @param {number} to
+ * @param {number} duration
+ * @param {Function} callback
+ */
 export function scrollTo(to, duration, callback) {
   const start = position()
   const change = to - start
diff --git a/src/utils/validate.js b/src/utils/validate.js
index ba93d1c3..e04f292e 100644
--- a/src/utils/validate.js
+++ b/src/utils/validate.js
@@ -1,41 +1,72 @@
 /**
  * Created by jiachenpan on 16/11/18.
  */
-
+/**
+ * @param {string} path
+ * @returns {Boolean}
+ */
 export function isExternal(path) {
   return /^(https?:|mailto:|tel:)/.test(path)
 }
 
+/**
+ * @param {string} str
+ * @returns {Boolean}
+ */
 export function validUsername(str) {
   const valid_map = ['admin', 'editor']
   return valid_map.indexOf(str.trim()) >= 0
 }
 
+/**
+ * @param {string} url
+ * @returns {Boolean}
+ */
 export function validURL(url) {
   const reg = /^(https?|ftp):\/\/([a-zA-Z0-9.-]+(:[a-zA-Z0-9.&%$-]+)*@)*((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]?)(\.(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])){3}|([a-zA-Z0-9-]+\.)*[a-zA-Z0-9-]+\.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{2}))(:[0-9]+)*(\/($|[a-zA-Z0-9.,?'\\+&%$#=~_-]+))*$/
   return reg.test(url)
 }
 
+/**
+ * @param {string} str
+ * @returns {Boolean}
+ */
 export function validLowerCase(str) {
   const reg = /^[a-z]+$/
   return reg.test(str)
 }
 
+/**
+ * @param {string} str
+ * @returns {Boolean}
+ */
 export function validUpperCase(str) {
   const reg = /^[A-Z]+$/
   return reg.test(str)
 }
 
+/**
+ * @param {string} str
+ * @returns {Boolean}
+ */
 export function validAlphabets(str) {
   const reg = /^[A-Za-z]+$/
   return reg.test(str)
 }
 
+/**
+ * @param {string} email
+ * @returns {Boolean}
+ */
 export function validEmail(email) {
   const reg = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
   return reg.test(email)
 }
 
+/**
+ * @param {string} str
+ * @returns {Boolean}
+ */
 export function isString(str) {
   if (typeof str === 'string' || str instanceof String) {
     return true
@@ -43,6 +74,10 @@ export function isString(str) {
   return false
 }
 
+/**
+ * @param {Array} arg
+ * @returns {Boolean}
+ */
 export function isArray(arg) {
   if (typeof Array.isArray === 'undefined') {
     return Object.prototype.toString.call(arg) === '[object Array]'
diff --git a/src/views/components-demo/splitpane.vue b/src/views/components-demo/splitpane.vue
index 72b62014..4259abea 100644
--- a/src/views/components-demo/splitpane.vue
+++ b/src/views/components-demo/splitpane.vue
@@ -1,7 +1,7 @@
 <template>
   <div class="components-container">
     <code><strong>SplitPane</strong> If you've used
-      <a href="http://codepen.io/" target="_blank"> codepen</a>,
+      <a href="https://codepen.io/" target="_blank"> codepen</a>,
       <a href="https://jsfiddle.net/" target="_blank"> jsfiddle </a>will not be unfamiliar.
       <a href="https://github.com/PanJiaChen/vue-split-pane" target="_blank"> Github repository</a>
     </code>
diff --git a/src/views/components-demo/sticky.vue b/src/views/components-demo/sticky.vue
index b1e6c89e..db86cb2d 100644
--- a/src/views/components-demo/sticky.vue
+++ b/src/views/components-demo/sticky.vue
@@ -28,7 +28,7 @@
       </el-dropdown>
 
       <div class="time-container">
-        <el-date-picker v-model="time" :picker-options="pickerOptions" type="datetime" format="yyyy-MM-dd HH:mm:ss" placeholder="Release time" />
+        <el-date-picker v-model="time" type="datetime" format="yyyy-MM-dd HH:mm:ss" placeholder="Release time" />
       </div>
 
       <el-button style="margin-left: 10px;" type="success">
diff --git a/src/views/tab/index.vue b/src/views/tab/index.vue
index e5824b1c..e5746580 100644
--- a/src/views/tab/index.vue
+++ b/src/views/tab/index.vue
@@ -39,7 +39,7 @@ export default {
 </script>
 
 <style scoped>
-  .tab-container{
+  .tab-container {
     margin: 30px;
   }
 </style>