How to concat two string array by escaping duplicates in C#

Question

I am trying to write a function that will take two string array and concat them but will escape duplicate array. For instance, in below two arrays cat is common. So I need to take cat only one time

input array1 = ["dog", "cat", "rat"] input array2 = ["fat", "cat", "bat"] output array = ["dog", "cat", "rat", "fat", "bat"]

Any guidance/ solution with built-in function or without any built-in function will help. TIA

LINQ Union is what you need.

Yeldar Kurmangaliyev
– Yeldar Kurmangaliyev

2017-04-24 04:02:44 +00:00
Commented Apr 24, 2017 at 4:02 — Yeldar Kurmangaliyev
– Yeldar Kurmangaliyev, Commented Apr 24, 2017 at 4:02

Sajeetharan · Accepted Answer · 2017-04-24 04:02:18Z

5

Use Union

string[] output = array1.Union(array2).ToArray();

WORKING FIDDLE

answered Apr 24, 2017 at 4:02

Sajeetharan

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M.kazem Akhgary · Accepted Answer · 2017-04-24 04:05:51Z

2

You can use Union or Distinct.

var output = array1.Union(array2).ToArray();
// or
var output = array1.Concat(array2).Distinct().ToArray();

answered Apr 24, 2017 at 4:05

M.kazem Akhgary

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Comments

spinalfrontier · Accepted Answer · 2017-04-24 04:07:04Z

2

var array1 = new[] { "dog", "cat", "rat" };
var array2 = new[] { "fat", "cat", "bat"};
var output = array1.Union(array2).ToArray();

answered Apr 24, 2017 at 4:07

spinalfrontier

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