destructuring-tutorial-snippet-22.js

function displaySummary({ name, scores: { maths = 0, english = 0, science = 0 } = {} } = {}) {
    console.log('Hello, ' + name);
    console.log('Your Maths score is ' + maths);
    console.log('Your English score is ' + english);
    console.log('Your Science score is ' + science);
}

// Calling without a student argument
displaySummary();

// Hello, undefined
// Your Maths score is 0
// Your English score is 0
// Your Science score is 0