how to take all array elements except last element in C#

I have a string array like this.

string[] queries with data more than one string.

I want to skip the last string from the element and take the remaining. I have come up with

var remStrings = queries.Reverse().Skip(1).Take(queries.Length - 1);

Is there a better alternative to this?

var remStrings = queries.Take(queries.Length - 1);

No need to Reverse and Skip. Just take one less element than there are in the array.

If you really wanted the elements in the reverse order, you could tack on a .Reverse() to the end.

For anyone finding this now...

With the upcoming support for ranges and indices C# 8 and .NET Core 3.0 you can simply write

var remStrings = queries[..^1]

This is short for

var remStrings = queries[0..^1]

This works by converting the 0 and 1 to indices (System.Index), with the ^ being the marker (actually an operator) to index from the end of a sequence. From these indices a range (System.Range) is then generates which can then be used to access the array. (See https://docs.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-8#indices-and-ranges)

Currently this only works in the preview version of .NET Core 3.0

Microsoft's Reactive Extensions' Team has the Interactive Extensions (NuGet "System.Interactive") that lets you do this:

var remStrings = queries.SkipLast(1);

Why not just have:

var remStrings = queries.Take(queries.Length-1);

Which will return them in the same order.

Append .Reverse() to swap the order if that's a necessary requirement:

var remStrings = queries.Take(queries.Length-1).Reverse();

This answer from a related post is also worth mentioning as it elegantly applies to any IEnumerable in a single pass, without the need to know its number of elements beforehand.

Edited: You could effectively replace your array with the same array minus the last element with the following line or code:

queries = queries.Take(queries.Length - 1).ToArray();

If you would like to create a method that does this for you, then you could use the following:

public static string[] TrimLastElement(string[] arr) {
    return arr.Take(arr.Length - 1).ToArray();
}

And implement it in your code like so:

queries = TrimLastElement(queries);