Ruby Set replace method

In ruby programming language, replace() set method are used to modify set by given enumerable object.

replace(enum) -> self

Ruby replace method example

require "set"
# Set s1
s1 = Set[10,20]
s2 = Set[true,false]

# Display result
print("Before")
print("\ns1  : ",s1.to_a)
print("\ns2  : ",s2.to_a)

# Replace or update set by enumerable object
r1 = s1.replace([3,5])
r2 = s2.replace([10,s1])

print("\nAfter")
# Display result
print("\ns1  : ",s1.to_a)
print("\ns2  : ",s2.to_a)
print("\nr1  : ",r1.to_a)
print("\nr2  : ",r2.to_a)

Before
s1  : [10, 20]
s2  : [true, false]
After
s1  : [3, 5]
s2  : [10, #<Set: {3, 5}>]
r1  : [3, 5]
r2  : [10, #<Set: {3, 5}>]