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Ruby | Set member?() function

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  • Last Updated : 07 Jan, 2020
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The member?() is an inbuilt method in Ruby returns true if the set contains the given object. It returns false if it does not contains the given object.

Syntax: s1_name.member?(object)

Parameters: The function accepts a mandatory parameter object whose presence is to be checked for.

Return Value: It returns true if the set contains the given object or it returns false.

Example 1:




# Ruby program to illustrate 
# the member method 
   
# requires the set 
require "set"
   
s1 = Set[16, 8, 3, 5, 2]
   
# member method used
puts s1.member?(2)

Output:

true

Example 2:




# Ruby program to illustrate 
# the member method 
   
# requires the set 
require "set"
   
s1 = Set[1, 2, 3]
   
# member method used
puts s1.member?(5)

Output:

false
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