I have included a multiple watcher in one of my components.In computed property,

   changeData() {
     const { propA, propB } = this
     return {
       propA,
       propB,
     }
   },

In watch,

changeData: {
  handler: function(val) {
    //Execute
  },
  deep: true
}

So, the issue being. Whenever one of the two data changes, callback function is called as expected.

But, suppose I have a flag set, using which I am calling an API and assigning data to these variables, I don't know how many times these get executed.

I want to know when the watcher stops after data from API is assigned to respective variables. I need to perform an operation, once watcher stops.