convnetjs | Deep Learning in Javascript | Machine Learning library

Part of this means detecting types that are "safe" to dump and restore, which is easy for:

• numbers, strings and booleans (via typeof)
• Array elements (via instanceof Array combined with ^ in iterated elements)
• ES6 Class instances (via typeof object and value.__proto__.constructor.name)

There is one type I'm struggling with though. It's the one created from calling:

var nn = new convnetjs.Net();

Which comes from this: https://github.com/karpathy/convnetjs/blob/master/src/convnet_net.js#L8

What's interesting is that Chrome dev tools detects this as a "Net" object:

This is what you'll see if you inspect the nn var shown above.

Here's what I've tried:

• nn instanceof Object === true

• Object.getPrototypeOf(nn) - interestingly, this exposes the functions assigned to Net.prototype in the link above, line 12 onwards. Seemed like a lead.

• Object.getPrototypeOf(nn).toString() == [object Object]

• Object.getPrototypeOf(nn) instanceof Object === true. Makes sense, since it's an object containing custom functions attached to the prototype.

• Object.getPrototypeOf(nn).constructor.name === Object

Would anyone know or have ideas how I could detect this type of object safely? Plain objects are fine, but I don't want to overwrite objects with modified prototypes.