Swift Set removeAll()

var numbers: Set = [2,4,6,8]

// remove all elements 
numbers.removeAll()

print(numbers)

// Output: []

removeAll() Syntax

The syntax of the removeAll() method is:

set.removeAll()

Here, set is an object of the Set class.

removeAll() Parameters

The removeAll() method doesn't take any parameter.

removeAll() Return Value

The removeAll() method doesn't return any value. It only removes elements from the set.

Example: Swift Set removeAll()

var languages: Set = ["Swift","Java","C"]
print("Programming Languages:", languages)

// removing all elements from set
languages.removeAll()

print("Set after removeAll:", languages)

Output

Programming Languages: ["Java", "Swift", "C"]
Set after removeAll: []