javascript - Check function execution completion

Question

I have a dynamic system where developers can "plugin" their functions into the different functionalities of the system. I'd like to trigger events once their functions are fully executed, but the problem is : I don't know anything about their functions (if they use async, promises ... )

Here is an example of what a plugin looks like :

var plugins = {

  // async
  onInit: async function () {
    return await x;
  },
  
  // promise
  onMount: function (selector) {
    fetch('https://stackoverflow.com/questions/ask').then(res => $selector.append('something'));
  },
  
  // normal function
  onUnmount: function () {
    return true;
  }
}

question from:https://stackoverflow.com/questions/65846104/check-function-execution-completion

Answer 1

Waitting for answers