Register for the Mini Program

Each Mini Program needs to use the App constructor Register for the Mini Program instance in app.js, bind the lifecycle callback function and mount properties on the instance.

app.js

App({
  globalData: {
    title: 'hello world!'
  },
  onCreate(options) {},
  onDestroy(options) {},
})

Get app instance

Use the getApp method to get an app instance

const globalData = getApp()._options.globalData

// Modify data by assigning values
globalData.title = 'hello Zepp OS!'