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C# Querying With LINQ Query Operators Set Operations

Aaron Selonke
Aaron Selonke
10,323 Points

Union() & Distinct()

Noticed that colors.Union(birds.Select(i => i.Color) produces the sequence of colors without the redundant color "blue" WITHOUT the Distinct() method...

1 Answer

Steven Parker
Steven Parker
228,978 Points

You're right, you don't need Distinct when you use Union. It doesn't hurt, but it doesn't need to be there.

Gavin Ralston
Gavin Ralston
28,770 Points

Yeah, that seems to be like, exactly how I'd expect a union to work. :)