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Ruby | Set difference() function
  • Last Updated : 07 Jan, 2020

The difference is an inbuilt method in Ruby that returns a new set built by duplicating the set, removing every element that appears in the given enumerable object.

Syntax: s1.name – s2.name

Parameters: The function does not takes any parameter.

Return Value: It returns a new set built by duplicating the set, removing every element that appears in the given enumerable object.

Example 1:



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# Ruby program to illustrate the difference method 
   
# requires the set 
require "set"
   
s1 = Set[1, 2, 4]
s2 = Set[1, 2, 3
   
# difference method used
s3 = s1.difference(s2)
   
# Prints the s3 
puts s3

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Output:

Set: {4}

Example 2:

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# Ruby program to illustrate the difference method 
   
# requires the set 
require "set"
   
s1 = Set[1, 2, 4]
s2 = Set[6, 5, 3
   
# difference method used
s3 = s1.difference(s2)
    
# Prints the s3 
puts s3

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Output:

Set: {1, 2, 4}
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