Ruby | Set subtract() function

The subtract() is an inbuilt method in Ruby returns the set after deleting all the objects that appear in the enum that is passed.

Syntax: s1_name.subtract(enum)

Parameters: The function takes an object enum whose elements are deleted from the set.

Return Value: It returns self object after removing all elements are removed of enum from set.

Example 1:

# Ruby program to illustrate
# the subtract() method

# requires the set
require "set"

s1 = Set[2, 12, 78, 10, 87, 98]
s2 = Set[2, 10, 87]

# subtract method used
puts s1.subtract(s2)

Output:

Set: {12, 78, 98}

Example 2:

# Ruby program to illustrate
# the subtract() method

# requires the set
require "set"

s1 = Set[4, 5, 6, 7, 10]

# subtract method used
puts s1.subtract([5, 7])

Output:

Set: {4, 6, 10}