Ruby | Set intersection() function

The intersection() is an inbuilt method in Ruby that returns a set which contains the common elements in both the set. In case there are no common elements, it returns an empty set. 

Syntax: s1.name.intersection(s2.name)

Parameters: The function does not takes any parameter.

Return Value: It returns a new set that contains the common elements in both the sets.

Example 1:  

Ruby

# Ruby program to illustrate the intersection method

# requires the set
require "set"

s1 = Set[1, 2, 4]
s2 = Set[1, 2, 3]

# intersection method used
s3 = s1.intersection(s2)

# Prints the s3
puts s3

Output: 

Set: {1, 2}

Example 2: 

Ruby

# Ruby program to illustrate the intersection method

# requires the set
require "set"

s1 = Set[1, 2, 4]
s2 = Set[6, 5, 3]

# method used
s3 = s1.intersection(s2)

# Prints the s3
puts s3

Output: 

<Set: {}