Swift Set formIntersection()

// create a set A
var A: Set = [2, 3, 5]

// create an array B
 var B = [2, 4, 6]

// form intersection between set A and array B
A.formIntersection(B)

print(A)

// Output: [2]

formIntersection() Syntax

The syntax of the set formIntersection() method is:

set.formIntersection(otherSequence)

Here, set is an object of the Set class.

formIntersection() Parameters

The formIntersection() method takes a single parameter:

• otherSequence - The sequence (mostly arrays and sets) of elements.

Note: The other must be a finite set.

formIntersection() Return Value

• The formIntersection() method doesn't return any value.

Example: Swift Set formIntersection()

// create a set A
var A: Set = ["a", "c", "d"]

// create another set B
var B: Set = ["c", "b", "e" ]

// create an array C
var C = ["b", "c", "d"]

// form intersection between set A and set B 
A.formIntersection(B)

print("New A:", A)

// form intersection between array C and set B 
B.formIntersection(C)

print("New B:", B)

Output

New A: ["c"]
New B: ["c", "b"]

Here, we have used the formIntersection() method to remove the elements that aren't common to both set and the given sequence and finally print the newly updated sets A and B.