Challenge question in JavaScript

Question

I think one of the challenge questions is mistaken. The question is
let obj= {
1: 0,
0: 1
};
console.log(obj['1']);
The result shows 1, but I think it should be 0, because on position '1' the value is 0.

Answer 1

D⚽⚽⚽⚽7⃣7⃣7⃣ , No problem :)
I have tried the given code in SoloLearn JS editor, and it outputs "0" as expected.
Unfortunately, the provided answer is wrong :/

Answer 2

I'm sorry the object was let obj, not object as I write it.