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How to take union of two sets in Ruby
okwudili onyejiaku
Overview
The addition of two sets in Ruby results in the set1 and set2 is a new set containing elements of set1 and set2. This is made possible using the plus operator, +.
Note: Sets do not accommodate duplicate values or elements.
Syntax
set1 + set2
Get the union of two sets
Operands
set1 and set2: These are the sets we want to get the union of.
Return value
It returns a new set with elements of set1 and set2.
Example
# require set
require "set"
# create some sets
EvenNumbers = Set.new([2, 4, 6, 8, 10])
NumbersToTen = Set.new([1, 2, 3, 4, 5, 6, 7, 8, 9, 10])
Names = Set.new(["Amaka", "Titi"])
Workers = Set.new(["Amaka", "Chioma", "Titi"])
# get the union
Union1 = EvenNumbers + NumbersToTen
Union2 = Names + Workers
# print out intersects
puts "#{Union1.to_a}"
puts "#{Union2.to_a}"Get the union of two sets in Ruby
Explanation
- Line 2: We import the
setinstance. - Lines 5–8: We create some set instances and initialize them.
- Lines 11 and 12: We use the
+operator to take the union ofsetinstances. - Lines 15 and 16: We print the unions in an array format to the console.
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okwudili onyejiaku
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