StringExtensionsIndexOfPrevious(String, FuncChar, Boolean, Int32) Method

Searches a string from right to left for the next instance of a character passing the specified delegate.

Definition

Namespace: Gemstone.StringExtensions
Assembly: Gemstone.Common (in Gemstone.Common.dll) Version: 1.0.128 -- Release Build+d050cfc5563c89a1188cc3c6b2d417530856f490

C#View Source Request Example

public static int IndexOfPrevious(
	this string? value,
	Func<char, bool> characterTestFunction,
	int startIndex = 0
)

VBView Source Request Example

<ExtensionAttribute>
Public Shared Function IndexOfPrevious ( 
	value As String,
	characterTestFunction As Func(Of Char, Boolean),
	Optional startIndex As Integer = 0
) As Integer

C++View Source Request Example

public:
[ExtensionAttribute]
static int IndexOfPrevious(
	String^ value, 
	Func<wchar_t, bool>^ characterTestFunction, 
	int startIndex = 0
)

JavaScriptView Source Request Example

Gemstone.StringExtensions.StringExtensions.IndexOfPrevious = function(value, characterTestFunction, startIndex);

Parameters

value String: Input string to process.
characterTestFunction FuncChar, Boolean: The delegate function used to match characters.
startIndex Int32 (Optional): The index in value from which to begin executing test function. Typically length of value minus 1."

Return Value

Int32
The index of the matching character within value or (-1) if not found.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type String. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

StringExtensionsIndexOfPrevious(String, FuncChar, Boolean, Int32) Method

Definition

Parameters

Return Value

Usage Note

See Also

Reference