Object.observe - Multiple observers support?

Question

Can someone tell me if Object.observe() will (once implemented) allow to register multiple observers via multiple calls? Or only the last one will stay?

For example if I do:

Object.observe(obj, myFirstFunction);
Object.observe(obj, mySecondFunction);

Will both functions get called when my object is updated or only mySecondFunction?

Answer 1

I tried this and I got that both are being called.

var obj = {name:'MD'};
var myFirstFunction = function (changes) {
    console.log("First " ,Object.keys(changes[0]))
}
var mySecondFunction = function (changes) {
    console.log("Second ",Object.keys(changes[0]))
}

Object.observe(obj, myFirstFunction);
Object.observe(obj, mySecondFunction);

obj.name = "Mritunjay"