---
title: "subtracting(_:)"
framework: swift
role: symbol
role_heading: Instance Method
path: "swift/setalgebra/subtracting(_:)"
---

# subtracting(_:)

Returns a new set containing the elements of this set that do not occur in the given set.

## Declaration

```swift
func subtracting(_ other: Self) -> Self
```

## Parameters

- `other`: A set of the same type as the current set.

## Return Value

Return Value A new set.

## Discussion

Discussion In the following example, the nonNeighbors set is made up of the elements of the employees set that are not elements of neighbors: let employees: Set = ["Alicia", "Bethany", "Chris", "Diana", "Eric"] let neighbors: Set = ["Bethany", "Eric", "Forlani", "Greta"] let nonNeighbors = employees.subtracting(neighbors) print(nonNeighbors) // Prints "["Diana", "Chris", "Alicia"]"