WeChat Mini Program Skill

WeChat Mini Program (微信小程序) development framework skill, generated from official documentation.

When to Use This Skill

This skill should be triggered when:

Developing WeChat Mini Programs (微信小程序)
Working with WXML, WXSS, or WXS
Using WeChat Mini Program APIs
Building WeChat components
Implementing WeChat open capabilities (开放能力)
Debugging Mini Program issues
Optimizing Mini Program performance

Quick Reference

Project Structure

├── app.js          # App logic
├── app.json        # App configuration
├── app.wxss        # Global styles
├── pages/
│   └── index/
│       ├── index.js    # Page logic
│       ├── index.json  # Page configuration
│       ├── index.wxml  # Page template
│       └── index.wxss  # Page styles
└── components/     # Custom components

Common Patterns

Example 1 (javascript):

WeixinJSBridge.invoke('imagePreview', {
    current: 'http://inews.gtimg.com/newsapp_bt/0/1693121381/641',
    urls: [ // 所有图片的URL列表，数组格式
        'https://img1.gtimg.com/10/1048/104857/10485731_980x1200_0.jpg',
        'https://img1.gtimg.com/10/1048/104857/10485726_980x1200_0.jpg',
        'https://img1.gtimg.com/10/1048/104857/10485729_980x1200_0.jpg'
    ]
}, function(res) {
    console.log(res.err_msg)
})

Example 2 (javascript):

wx.previewImage({
  current: 'https://img1.gtimg.com/10/1048/104857/10485726_980x1200_0.jpg',
  urls: [ // 所有图片的URL列表，数组格式
    'https://img1.gtimg.com/10/1048/104857/10485731_980x1200_0.jpg',
    'https://img1.gtimg.com/10/1048/104857/10485726_980x1200_0.jpg',
    'https://img1.gtimg.com/10/1048/104857/10485729_980x1200_0.jpg'
  ],
  success: function(res) {
    console.log(res)
  }
})

Example 3 (html):

<!-- /components/index.wmxl -->
<view class="index">{{prop}}</view>

Example 4 (js):

// /components/index.js
Component({
  properties: {
    prop: {
      type: String,
      value: 'index.properties'
    },
  },
})

Example 5 (css):

/* /components/index.wxss */
.index {
  color: green;
}

Example 6 (json):

{
  "nickName": "Band",
  "gender": 1,
  "language": "zh_CN",
  "city": "Guangzhou",
  "province": "Guangdong",
  "country": "CN",
  "avatarUrl": "http://wx.qlogo.cn/mmopen/vi_32/1vZvI39NWFQ9XM4LtQpFrQJ1xlgZxx3w7bQxKARol6503Iuswjjn6nIGBiaycAjAtpujxyzYsrztuuICqIM5ibXQ/0"
}

Example 7 (json):

{
    "openId": "OPENID",
    "nickName": "NICKNAME",
    "gender": GENDER,
    "city": "CITY",
    "province": "PROVINCE",
    "country": "COUNTRY",
    "avatarUrl": "AVATARURL",
    "unionId": "UNIONID",
    "watermark":
    {
        "appid":"APPID",
        "timestamp":TIMESTAMP
    }
}

Example 8 (js):

wx.cloud.callFunction({
  name: 'myFunction',
  data: {
    weRunData: wx.cloud.CloudID('xxx'), // 这个 CloudID 值到云函数端会被替换
    obj: {
      shareInfo: wx.cloud.CloudID('yyy'), // 非顶层字段的 CloudID 不会被替换，会原样字符串展示
    }
  }
})

Example 9 (html):

<scroll-view type="list" scroll-y>
  <view> a </view>
  <view> b </view>
  <view> c </view>
</scroll-view>

Example 10 (html):

<scroll-view type="list" scroll-y>
  <virtual-comp>
    <view> a </view>
    <view> b </view>
    <view> c </view>
  </virtual-comp>
</scroll-view>

Reference Files

This skill includes comprehensive documentation in references/:

getting_started.md - Quick start and introduction
framework.md - Mini Program framework (逻辑层、视图层)
components.md - Built-in components
api.md - API reference
cloud.md - Cloud development (云开发)
reference.md - Configuration reference

Use view to read specific reference files when detailed information is needed.

Key Concepts

App Lifecycle

App({
  onLaunch(options) {
    // Mini Program initialized
  },
  onShow(options) {
    // Mini Program shown
  },
  onHide() {
    // Mini Program hidden
  },
  globalData: {
    userInfo: null
  }
})

Page Lifecycle

Page({
  data: {
    message: 'Hello World'
  },
  onLoad(options) {
    // Page loaded
  },
  onShow() {
    // Page shown
  },
  onReady() {
    // Page ready
  },
  onHide() {
    // Page hidden
  },
  onUnload() {
    // Page unloaded
  }
})

WXML Data Binding

<view>{{message}}</view>
<view wx:if="{{condition}}">Conditional</view>
<view wx:for="{{array}}" wx:key="id">{{item}}</view>

Event Handling

<button bindtap="handleTap">Click Me</button>

Page({
  handleTap(e) {
    console.log(e)
  }
})

Working with This Skill

For Beginners

Start with the getting_started reference file for foundational concepts.

For Specific Features

Use the appropriate category reference file (api, framework, etc.) for detailed information.

For Code Examples

The quick reference section above contains common patterns extracted from the official docs.

Resources

Notes

This skill was automatically generated from official WeChat documentation
Reference files preserve the structure and examples from source docs
Content is in Chinese as per official documentation