javascript - 在功能范围之外解决Javascript Promise(Resolve Javascript Promise outside function scope)

Question

I have been using ES6 Promise.(我一直在使用ES6 Promise。)

Ordinarily, a Promise is constructed and used like this(通常，Promise是这样构造和使用的)

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.(但我一直在做类似下面的事情，为了灵活性而采取外面的决心。)

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

And later(然后)

onClick = function(){
    outsideResolve();
}

This works fine, but is there an easier way to do this?(这很好，但是有更简单的方法吗？)

If not, is this a good practice?(如果没有，这是一个好习惯吗？)   ask by Morio translate from so

Answer 1

simple:(简单：)

var promiseResolve, promiseReject;

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

promiseResolve();