Question

What's the output?

const obj = { a: 'one', b: 'two', a: 'three' };
console.log(obj);

• A: { a: "one", b: "two" }
• B: { b: "two", a: "three" }
• C: { a: "three", b: "two" }
• D: SyntaxError

Answer 1

Answer: C

If you have two keys with the same name, the key will be replaced. It will still be in its first position, but with the last specified value.