Swift Set insert()

var city: Set = ["Boston", "Tokyo", "Kathmandu"]

// add "London" to the city set
city.insert("London")

print(city)

// Output: ["Kathmandu", "Tokyo", "Boston", "London"]

insert() Syntax

The syntax of the set insert() method is:

set.insert(newElement)

Here, set is an object of the set class.

insert() Parameters

The insert() method takes a single parameter:

• newElement - element to be added to set

insert() Return Value

The insert() method doesn't return any value. It only updates the current set.

Example: Swift set insert()

var languages: Set = ["Swift", "C", "Java"]

// add "C++" to the languages set
languages.insert("C++")
print(languages)

var priceList: Set = [12, 21, 35]

// add 44 to the priceList set
priceList.insert(44)
print(priceList)

Output

["C", "Java", "Swift", "C++"]
[44, 21, 12, 35]