The is an inbuilt method in Ruby that returns a set which contain the common elements in both the set. In case there are no common elements, it returns an empty set.
Syntax: s1.name & 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 program to illustrate the& method #requires the set require "set"
s1
= Set[1, 2, 4] s2 = Set[1, 2, 3]
#& method used s3
= s1 & s2
#Prints the s3 puts s3
|
Output:
Set: {1, 2}
Example 2:
#Ruby program to illustrate the& method #requires the set require "set"
s1
= Set[1, 2, 4] s2 = Set[6, 5, 3]
#& method used s3
= s1 & s2
#Prints the s3 puts s3
|
Output:
<Set: {}Reference: https://devdocs.io/ruby~2.5/SizedQueue#method-c-new