JS Practice — Built-in Objects

Set isDisjointFrom() — identical sets are not disjoint

📖 Usage Example

const a = new Set([1, 2])
const b = new Set([3, 4])
a.isDisjointFrom(b)   // → true
a.isDisjointFrom(new Set([2, 5])) // → false

Use Set.isDisjointFrom() to check whether two sets share no elements.

Set.prototype.isDisjointFrom() (ES2025)

Identical non-empty Sets are not disjoint — they share all elements.

Challenge: Verify that identical Sets are not disjoint.

💡 Hints (1)