The practice is as follows:

  • First question: although applets are not supported, we can introduce JS library. Download runtime.js from ‘packages/ regenerator-Runtime ‘and put it in the utils or lib folder of your own applets project.

  • Second question: the use of Async and Await

  • Async – Define Async function someName(){… })

    • Automatically converts the function to a Promise
    • When an asynchronous function is called, the return value of the function is resolved
    • Async functions can use await internally

  • Await – suspend execution of asynchronous functions (var result = Await someAsyncCall();)

    • When used before a Promise, await waits for the Promise to complete and returns the result of the Promise
    • Await can only be used with promises, not callback
    • Await can only be used in async functions
import regeneratorRuntime from '.. /.. /utils/runtime.js'

onLoad: function() {
    this.initData();
  },

  async initData(){ await this.initMyData(); // request interface 1 await this.initTodayData(); 2} initMyData:function(){
	console.log('Start request 1')... // Call console.log()"Complete Request 1")
	
	
}

  initTodayData:function(){
	console.log('Start request 2')... // Call console.log()"Complete Request 2")}Copy the code

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