Javascript object representation format

Question

In compiler IR representation, we know that function type can be represented using Cartesian Product.

For example:

function my_func(a, b) { return c; }

the function type can be denoted as: (int × double)->int

(note that here I assume that all types are known)

So, if I declare an object in Javascript like

var obj = {"name":"haha", "id":123};

Is there any formal representation to represent obj which is object type in Javascript ?

Thank you.

Yes, that's an `[object Object]`. JavaScript is a unityped language. — elclanrs, May 28 '14 at 06:07
@cookiemonster, of course it does, as this *is* a good question and that comment is the answer, I suppose — Amit Joki, May 28 '14 at 06:12
@AmitJoki: Nah, as long as the OP gets the info, it doesn't really make a difference where the info comes from. — cookie monster, May 28 '14 at 06:14
@cookiemonster, that is where you're going wrong. It's not just about OP but about future readers who might have the same question, but they won't find an answer — Amit Joki, May 28 '14 at 06:15
@AmitJoki: Future readers can read comments too, no? If you want to post an answer, you should go ahead. — cookie monster, May 28 '14 at 06:17
@cookiemonster, I've been answering a lot, where elclanrs comments the same as my answer whilst I type. So, I don't want to be framed as the one who copies other's answer :) — Amit Joki, May 28 '14 at 06:19
@AmitJoki: I understand, but you shouldn't let that stop you. If someone decides to post an answer as a comment, they have nothing to complain about when someone else posts a similar answer. — cookie monster, May 28 '14 at 06:21
There has to be a duplicate somewhere, but I'm lazy, I don't want to elaborate, feel free to post a proper answer. — elclanrs, May 28 '14 at 06:21
Thank you all. But may I ask that according to my example : var obj = {"name":"haha", "id":123}; How to represent this ? (I mean including all property types) — shwu, May 28 '14 at 06:30

score 0 · Accepted Answer · answered May 28 '14 at 06:35

Javascript is unityped language. That is, there is no separate int, string, double, byte data types. All it has is var.

All objects, take the literal form of [object Object] when they are converted to strings.

There is no javascript debuggers AFAIK that debugs to such a depth to know all these things.

Javascript object representation format

1 Answers1