MoreEnumerableScanTSource, TState Method (IEnumerableTSource, TState, FuncTState, TSource, TState) |
Namespace:
MoreLinq
Assembly:
MoreLinq (in MoreLinq.dll) Version: 2.4.0
Syntax public static IEnumerable<TState> Scan<TSource, TState>(
this IEnumerable<TSource> source,
TState seed,
Func<TState, TSource, TState> transformation
)
<ExtensionAttribute>
Public Shared Function Scan(Of TSource, TState) (
source As IEnumerable(Of TSource),
seed As TState,
transformation As Func(Of TState, TSource, TState)
) As IEnumerable(Of TState)
public:
[ExtensionAttribute]
generic<typename TSource, typename TState>
static IEnumerable<TState>^ Scan(
IEnumerable<TSource>^ source,
TState seed,
Func<TState, TSource, TState>^ transformation
)
[<ExtensionAttribute>]
static member Scan :
source : IEnumerable<'TSource> *
seed : 'TState *
transformation : Func<'TState, 'TSource, 'TState> -> IEnumerable<'TState>
Parameters
- source
- Type: System.Collections.GenericIEnumerableTSource
Source sequence - seed
- Type: TState
Initial state to seed - transformation
- Type: SystemFuncTState, TSource, TState
Transformation operation
Type Parameters
- TSource
- Type of elements in source sequence
- TState
- Type of state
Return Value
Type:
IEnumerableTStateThe scanned sequence
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type
IEnumerableTSource. 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).
Remarks
This operator uses deferred execution and streams its result.
Examples var result = Enumerable.Range(1, 5).Scan(0, (a, b) => a + b);
When iterated,
result will yield
{ 0, 1, 3, 6, 10, 15 }.
See Also