Mastering Windows PowerShell Scripting - Third Edition

Using methods

As we mentioned previously, methods effect a change in state. That may be a change to the object associated with the method, or it may take the object and convert it into something else.

Methods are called using the following notation in PowerShell:

<Object>.Method() 

If a method expects to have arguments (or parameters), the notation becomes the following:

<Object>.Method(Argument1, Argument2) 

When the method is called without parentheses, PowerShell will show the overload definitions. The overload definitions are a list of the different sets of arguments that can be used with a method. For example, the Substring method of System.String has two definitions:

PS> 'thisString'.SubstringOverloadDefinitions-------------------