Do you know what will be the output of this code? const obj = { b: 1, 2: "x", a: 2, 1: "y" }; console.log(Object.keys(obj));

In what order does Object.keys return keys?

Do you know what will be the output of this code?

JavaScript

const obj = { b: 1, 2: "x", a: 2, 1: "y" };
console.log(Object.keys(obj));

Show answer and explanation

The answer is ["1", "2", "b", "a"].

Integer-like keys are listed first in numeric order. Other string keys follow in the order they were added.