Ruby | Set difference() function

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:

# 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

Output:

Set: {4}

Example 2:

# 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

Output:

Set: {1, 2, 4}

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