Viewing Objects In Javascript ( Under The Hood )

Im very curious as to how objects are displayed in nodejs and in this case promises. When using console.log(promiseObject) the output is of type {state:pending} This seems very wei

Solution 1:

Use a debugger, your browser has probably a good one. F12 in your browser and click the Run button below and you can explore a Promise object (works in Chrome/Chromium, Edge, Firefox):

console.clear();
var a = newPromise(function(res, rej) { res(); });
console.dir(a);

then(), catch() and other functions are in the __proto__ property.

Solution 2:

var p1 = a()
console.log(p1)

here p1 is calling a function which returns a promise. so when you console log that promise you will see the status of promise. But you want the object do something like

functiona(){

var deferred = q.defer();

setTimeout(function(){
    var data = {status: 'resolved', value: '3'};
    deferred.resolve(data);
},4000)

return deferred.promise;
}

a().then(function (data) {
  console.log(data); //prints {status: 'resolved', value: '3'}
}

hope it helped