Does JSON.stringify recognize properties defined with Object.defineProperty?

Question

Does JSON.stringify work with objects that are created like

obj = {}
Object.defineProperty(obj, 'prop', {
  get: function() { return 1 }
  set: function(value) { ... }
})

It returns {} when called on this object.

plalx · Accepted Answer · 2013-03-30 00:46:57Z

38

You might want to set the enumerable option to true, like this:

Object.defineProperty(o, 'test', {
    get: function () { return 1; },
    enumerable: true
});

answered Mar 30, 2013 at 0:46

plalx

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5 Comments

I don't know why they didn't make enumerable:true the default. It was causing me quite the headache when I tried to convert to JSON.

That works fine with object not not classes :(

@MatthieuRiegler Well, class instances are just objects. You could call the above code on this in the class's constructor.

Yeah that's what I just found out (I was using the prototype), thx !

@MatthieuRiegler Note that you can still reuse the same function instance rather than creating a new one inline.