Ruby | Set <= method
The <= is an inbuilt method in Ruby returns true if the set is a subset of the given set.
Syntax: s1_name <= s2_name
Parameters: The function takes a mandatory parameter with which it is checked for subset.
Return Value: It returns self.
Example 1:
# Ruby program to illustrate # the <= method # requires the set require "set" s1 = Set[ 2 , 12 , 78 , 10 , 87 , 98 ] s2 = Set[ 2 , 10 , 87 ] # reset method used puts s2 <= s1 |
Output:
true
Example 2:
# Ruby program to illustrate # the <= method # requires the set require "set" s1 = Set[ 2 , 12 , 78 , 10 , 87 , 98 ] s2 = Set[ 1 , 2 , 3 ] # reset method used puts s2 <= s1 |
Output:
false
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