Why are Q.js promises asynchronous after they have been resolved?

Question

If I have the following :

var deferred = Q.defer();

deferred.resolve();

var a = deferred.promise.then(function() {
    console.log(1);    
});

console.log         


        

Answer 1

Answer is consistency.

In real code, you don't have promises that are always immediately resolved when created, they would be pointless. So you have promises that sometimes may be immediately resolved.

In that case, you don't want to have a different flow. You want always the same, predictable flow. So you want the next function to be always called on next tick.

Don't use a promise when you don't need one.