how to access parent of javascript object

Question

I have a slideshow class looking like this:

//Our slideshow class
function Slideshow(moduleId) {

  this.moduleId = moduleId;

  this.activeSlide = null;

  this.slides = new Array();

  this.newRound();

}

and I instantiate it telling it what module it is on like this

self.modules[moduleId].slideshow = new Slideshow(moduleId);

Now as you can see, it is already "mounted" on a module named by the moduleId, so my question is: Is this object (the instance of Slideshow) aware of it's parent?

Can I find out the moduleId by doing something like

parent.name

and get the moduleId that way?

Answer 1

不可以。因为JavaScript通过引用传递对象，所以实际上同一Slideshow对象可以同时被多个“父”对象引用。