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What are union, intersect and except operators in Linq C#?
Union
Union combines multiple collections into a single collection and returns a resultant collection with unique elements
Intersect
Intersect returns sequence elements which are common in both the input sequences
Except
Except returns sequence elements from the first input sequence that are not present in the second input sequence
Example
class Program{
static void Main(){
int[] count1 = { 1, 2, 3, 4 };
int[] count2 = { 2, 4, 7 };
var resultUnion = count1.Union(count2);
var resultIntersect = count1.Intersect(count2);
var resultExcept = count1.Except(count2);
System.Console.WriteLine("Union");
foreach (var item in resultUnion){
Console.WriteLine(item);
}
System.Console.WriteLine("Intersect");
foreach (var item in resultIntersect){
Console.WriteLine(item);
}
System.Console.WriteLine("Except");
foreach (var item in resultExcept){
Console.WriteLine(item);
}
Console.ReadKey();
}
}Output
Union 1 2 3 4 7 Intersect 2 4 Except 1 3
Updated on: 04-Aug-2020
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