The goal of the Mini Program development framework is to enable developers to develop services with a native APP experience on WeChat in a simplest and most efficient way possible.

The framework provides its own view layer description languages WXML and WXSS, as well as a JavaScript-based logical layer framework, and provides a data transfer and event system between the view layer and the logical layer, allowing developers to easily focus on data and logic.

Responsive data binding

The core of the framework is a responsive data binding system.

The entire system is divided into a view layer (View) and a logic layer (App Service).

The framework keeps data and views in sync in a simple way. When the data needs to be changed, you only need to modify it in the logical layer, and the view layer will update accordingly.

Look at this simple example:

Preview with Developer Tool

<!-- This is our View -->
<view> Hello {{name}}! </view>
<button bindtap="changeName"> Click me! </button>
// This is our App Service.
// This is our data.
var helloData = {
  name: 'WeChat'

// Register a Page.
  data: helloData,
  changeName: function(e) {
    // sent data change to view
      name: 'MINA'
  • The developer binds name in the logical layer data to the name of the view layer through the framework, so Hello WeChat! is displayed when the page is opened.
  • When the button is clicked, the view layer sends changeName event to the logical layer, and the logical layer finds the corresponding event handler.
  • The logic layer performs setData operation, changing the name from WeChat to MINA because the data and view layer are already bound, so the view layer is automatically changed to Hello MINA!.

Page management

The framework manages the entire page routing of Mini Program, which enables seamless switching between pages and gives the page a complete lifecycle. The developer only needs to do is register the data, methods, and lifecycle functions of the page into the framework, while all other complicated operations are handled by the framework.

Basic components

The framework provides a set of basic components that come with WeChat styles and special logic. The developers can create powerful WeChat Mini Programs by combining such base components.

Rich APIs

The framework provides a rich set of WeChat native APIs, which can easily invoke the capabilities provided by WeChat, such as user information access, local storage, and payment functions.

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