Question: Promise resolved handling

gistfile1.js

// Do you prefer alwaysWrapped() or wrappedWhenNeeded() for
// a method that depends on some promise being resolved?

function FooBar() {
  this.ready = $.getJSON('something.funky');
}

FooBar.prototype.alwaysWrapped = function() {
  return this.ready.then(function(){
    // do something that returns a promise
  });
};

FooBar.prototype.wrappedWhenNeeded = function() {
  if (!this.ready.isResolved()) {
    return this.ready.then(this.wrappedWhenNeeded.bind(this));
  }
  
  // do something that returns a promise
};

I don't know how the second example works, but the first one looks good :)

This might be a good question for es-discuss.

Maybe this:

FooBar.prototype.doStuff = function () {
    // just assume .ready is resolved
   // do something that returns a promise
};

// then…
var foobar = new FooBar();
foobar.ready.then(foobar.doStuff.bind(foobar));