Remove elements from an array in C# [duplicate]

Question

I have array something like this

string[] arr = ['a', '', 'c', 'f', ''];

I want to remove null elements from the same.

How can I remove the required elements in C#?

@RGraham Nope. char is a value type, so the closest you could do is the NUL character, \0. It's great when users post questions about code that won't even compile. — Jonathon Reinhart
– Jonathon Reinhart, Commented May 20, 2014 at 7:08

Usman · Accepted Answer · 2014-05-20 07:11:54Z

2

Use it as

arr = arr.Where(x => x != "").ToArray();

answered May 20, 2014 at 7:11

Usman

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Comments

Toan Nguyen · Accepted Answer · 2014-05-20 07:09:26Z

2

string[] notNullStrings = arr.Where(it => !string.IsNullOrEmpty(it)).ToArray();

edited May 20, 2014 at 7:09

user1047100

answered May 20, 2014 at 7:08

Toan Nguyen

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7 Comments

Patrick Hofman Over a year ago

Those are not strings

Toan Nguyen Over a year ago

@PatrickHofman oopss!

Sayse Over a year ago

Regardless, it will remove strings that are null or empty which is what the question asked for, another improvement to your answer should be .Where(!string.IsNullOrEmpty) but i'm not at a computer where I can test this

Toan Nguyen Over a year ago

@Sayse IMO string.IsNullOrEmpty() == false is easier to read than !string.IsNullOrEmpty()

Sayse Over a year ago

It is less efficient though as it adds an extra comparison, although this may get handled by the compiler, it may not for some other compilers

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