Question

I have two string arrays

string[] a = ...
string[] b = ...

I want to remove any items from a that also exist in b or return a new array with only those items that exist only in a.

So, for example, if

a={"a", "b", "c"};

and,

b={"b"}

then the result should be

{"a", "c"}

Is there a neat lambda expression or Linq or something I can use to do this?

Thanks,

Sachin

Answer 1

I believe Except will do what you want. Remember, Except, like most LINQ Extension methods, will not modify the existing collection. It will return a new collection.

c = a.Except(b)