Resolve Javascript Promise outside function scope

Question

I have been using ES6 Promise.

Ordinarily, a Promise is constructed and used like this

new Promise(function(resolve, reject){     if (someCondition){         resolve();     } else {         reject();     }  }); 

But I have been doing something like below to take the resolve outside for the sake of flexibility.

var outsideResolve; var outsideReject; new Promise(function(resolve, reject) {      outsideResolve = resolve;      outsideReject = reject;  }); 

And later

onClick = function(){     outsideResolve(); } 

This works fine, but is there an easier way to do this? If not, is this a good practice?

Answer 1

simple:

var promiseResolve, promiseReject;  var promise = new Promise(function(resolve, reject){   promiseResolve = resolve;   promiseReject = reject; });  promiseResolve();