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Ruby | Set subset? function

  • Last Updated : 07 Jan, 2020

The subset?() is an inbuilt method in Ruby returns true if the set is a subset of the given set.

Syntax: s1_name.subset?(s2_name)

Parameters: The function takes a mandatory parameter with which it is ch

Return Value: It returns self.

Example 1:




# Ruby program to illustrate 
# the subset?() method 
   
# requires the set 
require "set"
   
s1 = Set[2, 12, 78, 10, 87, 98
s2 = Set[2, 10, 87]
   
# reset method used 
puts s2.subset?(s1)

Output:

true

Example 2:




# Ruby program to illustrate 
# the subset?() method 
   
# requires the set 
require "set"
   
s1 = Set[2, 12, 78, 10, 87, 98
s2 = Set[1, 2, 3]
   
# reset method used 
puts s2.subset?(s1)

Output:

false

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