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How do you destructure values out of an array? What does the spread operator (...) do when used on an array? How do you assign default values while destructuring? How does the rest parameter differ from the spread operator, even though they use the same '...' syntax? How do you use spread to shallow-copy and merge objects? How do you destructure nested objects and arrays in one statement? Why must the rest element be the LAST element in a destructuring pattern? How can you use destructuring to swap two variables without a temporary variable? How do computed property names interact with object destructuring?
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JavaScript › Destructuring, Spread & Rest

How do you destructure properties out of an object?

Beginner

Answer

Object destructuring pulls named properties into variables using curly-brace syntax; the variable names must match the property names unless you rename them.
const user = { name: 'Sam', age: 30 };
const { name, age } = user;
console.log(name); // 'Sam'
Real-world example Extracting just the fields you need from a large API response object.

Common follow-ups: How do you rename a destructured variable?

Objects Property Descriptors & Immutability
All 10 Destructuring, Spread & Rest questions