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This article mainly shows you "what is the meaning of the logical layer of WeChat Mini Programs frame". The content is simple and clear. I hope it can help you solve your doubts. Next, let the editor lead you to study and learn the article "what is the logical layer of WeChat Mini Programs frame?"

Logical layer (App Service)

The logical layer of Mini Program development framework is written by JavaScript.

The logic layer processes the data and sends it to the view layer and receives event feedback from the view layer. Based on JavaScript, we have made some modifications to facilitate the development of Mini Program.

Add App and Page methods to register programs and pages.

Provide rich API, such as scan, payment and other unique capabilities of Wechat.

Each page has its own scope and provides modularity.

Because the framework does not run in a browser, some capabilities of JavaScript are not available in web, such as document,window.

All code written by developers will eventually be packaged into a JavaScript and run when Mini Program starts until Mini Program is destroyed. Similar to ServiceWorker, so the logical layer is also called App Service.

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