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}