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Asked: 2026-05-14T23:36:14+00:00

According to both Intellisense and MSDN doc on string.Split , there are no parameterless

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According to both Intellisense and MSDN doc on string.Split, there are no parameterless overloads of string.Split. Yet if I type in 

string[] foo = bar.Split();

It compiles. And it works. I have verified this in both Visual Studio 2008 and 2010. In both cases intellisense does not show the parameterless overload.

Is there a reason for this? Are there any other missing overloads from the MSDN/Intellisense docs? Usually browsing through overloads in intellisense is how I best determine which overload to use. I’d hate to think I am missing other available options throughout the .Net framework.

EDIT: as shown above, it splits on whitespace.

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1 Answer

  1. Editorial Team

    That is because Split has a params overload. Giving no parameters is the same as giving an empty array. In other words, you are calling this overload.

    "some text".Split();

    Is the same as:

    "some text".Split(new char[0]);

    Here is the documentation on the params keyword. As you probably know, it is used for giving a method a variable number of parameters. That number may be zero.

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