Ruby | Set replace() function

The replace() is an inbuilt method in Ruby which replaces the contents of the set with the contents of the given enumerable object and returns self.

Syntax: s1.replace(enum)

Parameters: The function accepts an enumerable object which to be replaced in the set.

Return Value: It returns the self object which contains the contents of the set after replacement.

Example 1:

# Ruby program to illustrate
# the replace() method

# requires the set
require "set"

s1 = Set[1, 2]
s2 = Set[1, 2, 3]

# replace method used
puts s1.replace(s2)

# s1 after replacement
puts s1

Output:

Set: {1, 2, 3}
Set: {1, 2, 3}

Example 2:

# Ruby program to illustrate
# the replace() method

# requires the set
require "set"

s1 = Set[4, 4]
s2 = Set[2, 12, 78, 87, 98]

# replace method used
puts s2.replace(s1)

# s1 after replacement
puts s2

Output:

Set: {4}
Set: {4}