---
title: "subtract(_:)"
framework: swift
role: symbol
role_heading: Instance Method
path: "swift/set/subtract(_:)-7uaak"
---

# subtract(_:)

Removes the elements of the given set from this set.

## Declaration

```swift
mutating func subtract(_ other: Self)
```

## Parameters

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

## Discussion

Discussion In the following example, the elements of the employees set that are also members of the neighbors set are removed. In particular, the names "Bethany" and "Eric" are removed from employees. var employees: Set = ["Alicia", "Bethany", "Chris", "Diana", "Eric"] let neighbors: Set = ["Bethany", "Eric", "Forlani", "Greta"] employees.subtract(neighbors) print(employees) // Prints "["Diana", "Chris", "Alicia"]"