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Advanced JavaScript Tutorial for Experienced Developers

Optional Chaining allows you to safely access deeply nested properties without having to manually check if each reference in the chain is valid.

const user = {
    name: 'Alice',
    address: {
        city: 'Wonderland'
    }
};

console.log(user?.address?.city); // Output: Wonderland
console.log(user?.contact?.phone); // Output: undefined (no error)

Sep 02, 2024
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