JS Practice — Built-in Objects

Object.fromEntries() — array of pairs to object

📖 Usage Example

// Build an object from [key, value] pairs
const entries = [['a', 1], ['b', 2]]
Object.fromEntries(entries)   // → { a: 1, b: 2 }

Use Object.fromEntries() to convert an iterable of [key, value] pairs into a plain object.

Object.fromEntries()

Object.fromEntries(iterable) transforms an iterable of [key, value] pairs into a plain object. It is the inverse of Object.entries.

Challenge: Implement pairsToObject(pairs) that converts an array of [key, value] pairs into an object.

pairsToObject([['a', 1], ['b', 2]]) // → { a: 1, b: 2 }

💡 Hints (2)