Exchanges the values at the specified indices of the collection.
SDK
- Xcode 9.0+
Framework
- Swift Standard Library
Declaration
mutating func swapAt(_ i: Dictionary<Key, Value>.Index, _ j: Dictionary<Key, Value>.Index)
Parameters
iThe index of the first value to swap.
jThe index of the second value to swap.
Discussion
Both parameters must be valid indices of the collection and not equal to end. Passing the same index as both i and j has no effect.
Complexity: O(1)