Sort an int array with orderby

Question

I would like to sort my int array in ascending order.

first I make a copy of my array:

int[] copyArray = myArray.ToArray();

Then I

Answer 1

Note: if you don't need a copy (i.e. it is acceptable to change myArray), then a much simpler and more efficient approach is just:

Array.Sort(myArray);

This does an in-place sort of the array, exploiting the fact that it is an array to be as efficient as possible.

For more complex scenarios (for example, a member-wise sort of an object-array), you can do things like:

Array.Sort(entityArray, (x,y) => string.Compare(x.Name, y.Name));

this is the moral-equivalent of:

var sortedCopy = entityArray.OrderBy(x => x.Name).ToArray();

but again: doing the sort in-place.