Do you know what will be the output of this code? const { a = 1, b = 2 } = { a: null, b: undefined }; console.log(a, b);

When do destructuring default values apply?

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

JavaScript

const { a = 1, b = 2 } = { a: null, b: undefined };
console.log(a, b);

Show answer and explanation

The answer is null 2.

Like default parameters, destructuring defaults only kick in for undefined. null is treated as a real value.