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subtract


Declaration​

mutating func subtract(_ other: Self)

Summary​

Removes the elements of the given set from this set.
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"]"

Parameters​

NameTypeSummary
otherSelf
A set of the same type as the current set.