default value for optional chaining ? js code example
Example 1: optional chain operator
const adventurer = {
name: 'Alice',
cat: {
name: 'Dinah'
}
};
const dogName = adventurer.dog?.name;
console.log(dogName);
// expected output: undefined
Example 2: optional-chaining operator
if (user?.team?.subscription?.invoices) {
//
}