[SOLVED] The Linq Distinct() usage

Question

Hi SoloLearners,

In attempt to answer a question on how to remove duplicates from array, I searched and found that it was possible by the use of HashSet and Linq.

But it seems I wasn't using Linq the right way. It doesn't remove duplicates from the string array. What did I do wrong?

The code (Edited)
https://code.sololearn.com/c2t6vGxCg1lM/?ref=app

Thank you in advance 🙏

Answer 1

You are. Maybe, the variable you want to print in the end is "query" and not "strArray".

Answer 2

Ipang Like in the Microsoft docs example? You need to loop over strArray and print in the format that you want.

Answer 3

Ipang I don't think it is possible. Seems that Linq just returns distinct elements without change the original object. You need to assign to a variable to get the result.

Answer 4

Anya
You're right ... Thanks.

One more question. What do I do to also see the effect of Distinct() on <strArray>.

I mean, the example using HashSet made changes to the array, how to do that with Linq?

Answer 5

Anya no ...
I want the Distinct() filtered items to also reflect in <strArray>. The docs example shows how to print the <query> but I want to see the change to reflect in the array like the one from HashSet example.

Is it possible? or that's just how Linq works?

Answer 6

Okay Anya
I figured I'd just glue the <query> to get the filtered string back ...

Thanks for the correction and enlightenment 🙏