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If you want to efficiently copy the whole array, you can use the following code:

byte[] source = [1, 2, 3, 4, 5, 6, 7, 8];
byte[] target = new byte[source.Length];
Array.Copy(source, target, source.Length);

Copying a part of an array is supported as well, as you can see below:

byte[] source = [1, 2, 3, 4, 5, 6, 7, 8];
byte[] target = new byte[4];
Array.Copy(source, 2, target, 0, 4);

The following parameters of the Copy static method indicate:

• the source array (source),
• a starting index of the source array (2),
• the target array (target),
• a starting index of the target array (0),
• the length (4).

So, the code above copies 4 elements from the source array, starting from index 2, and places them in target array, starting from index 0. Then, the target array contains the elements: [3, 4, 5, 6].

If you want to learn much more about arrays, as well as about other data structures, I encourage you to take a look at my book, namely the Second Edition of C# Data Structures and Algorithms, published by Packt Publishing in 2024. You can buy it here.

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