将原型链导航到Object.prototype

Question

I was trying to figure out how a constructor function's prototype object looks like. Thus I tried the below.

Any idea why both lines show an empty object? Should not the bottom line print the Object 's prototype object ( Object.prototype )?

function Product(name, price) {
    this.name = name;
    this.price = price;
}
console.log('Product prototype: ' + JSON.stringify(Product.prototype, null, 4));
console.log('Object prototype: ' + JSON.stringify(Object.getPrototypeOf(Product.prototype), null, 4));

Thank you.

Answer 1

JSON.stringify trys to convert javascript objects into JSON format.

You can't convert the Javascript functions, constructor info etc into JSON using JSON.stringify , which is why an empty object is returned;

Try this:

console.log('Product prototype: ' , Product.prototype);
console.log('Object prototype: ' , Object.getPrototypeOf(Product.prototype));