JS Practice — Built-in Objects

Utility Types — pluck<T>

📖 Usage Example

pluck([{ name: 'Alice', age: 30 }, { name: 'Bob', age: 25 }], 'name')
// → ['Alice', 'Bob']

pluck<T> extracts a single property from every object in an array, returning a typed array.

Utility Types: pluck

Challenge: Implement pluck<T extends object, K extends keyof T>(arr: T[], key: K): T[K][] extracting a single property from each object in an array.

pluck([{name:'Alice',age:30},{name:'Bob',age:25}], 'name')
// → ['Alice', 'Bob']

💡 Hints (1)

• map over the array extracting item[key].