.NET 4.0 Generics

Time for action – finding all names from the list, removing duplicates

Follow the given steps:

1. Copy the following code snippet as a query to LINQPad. Using the previous example, the change is highlighted:

   List<string> nameList1 = new List<string>(){"Anders", "David", "James", "Jeff", "Joe", "Erik"};
   List<string> nameList2 = new List<string>(){"Erik","David","Derik"};
   var commonNames = nameList1.Union(nameList2);
   foreach (var name in commonNames)
   Console.WriteLine(name);

2. Run the query. You should see the following output:
   

What just happened?

Union() returns a list of all the strings in both the collections, removing duplicates. Like Itersect(), it ...