Swift Set forEach()

forEach() Syntax

The syntax of the forEach() method is:

set.forEach{iterate}

Here, set is an object of the Set class.

forEach() Parameters

The forEach() method takes one parameter:

• iterate - a closure body that takes an element of the set as a parameter.

forEach() Return Value

• The forEach() method doesn't return any value. It just iterates through the set.

Example 1: Swift set forEach()

Output

6
8
2
4
10

In the above example, we have created a set named numbers and we have used the forEach() method to iterate through it. Notice the closure body,

{ number in 
  print(number)
}

Here, number represents each element of numbers. And each element is printed during each iteration.

Example 2: forEach vs for Loop

Output

Using forEach():
3
1
2
Using for loop:
3
1
2