ZipLongestExtensionZipLongestTFirst, TSecond, TResult Method (IEnumerableTFirst, IEnumerableTSecond, FuncTFirst, TSecond, TResult)

Returns a projection of tuples, where each tuple contains the N-th element from each of the argument sequences. The resulting sequence will always be as long as the longest of input sequences where the default value of each of the shorter sequence element types is used for padding.

Namespace: MoreLinq.Extensions
Assembly: MoreLinq (in MoreLinq.dll) Version: 3.2.0+5205ea241d72b079436060d330cd5c2eae7cdcdf

Syntax

C++

Copy

public static IEnumerable<TResult> ZipLongest<TFirst, TSecond, TResult>(
	this IEnumerable<TFirst> first,
	IEnumerable<TSecond> second,
	Func<TFirst, TSecond, TResult> resultSelector
)

<ExtensionAttribute>
Public Shared Function ZipLongest(Of TFirst, TSecond, TResult) ( 
	first As IEnumerable(Of TFirst),
	second As IEnumerable(Of TSecond),
	resultSelector As Func(Of TFirst, TSecond, TResult)
) As IEnumerable(Of TResult)

public:
[ExtensionAttribute]
generic<typename TFirst, typename TSecond, typename TResult>
static IEnumerable<TResult>^ ZipLongest(
	IEnumerable<TFirst>^ first, 
	IEnumerable<TSecond>^ second, 
	Func<TFirst, TSecond, TResult>^ resultSelector
)

[<ExtensionAttribute>]
static member ZipLongest : 
        first : IEnumerable<'TFirst> * 
        second : IEnumerable<'TSecond> * 
        resultSelector : Func<'TFirst, 'TSecond, 'TResult> -> IEnumerable<'TResult>

Parameters

first: Type: System.Collections.GenericIEnumerableTFirst
The first sequence.
second: Type: System.Collections.GenericIEnumerableTSecond
The second sequence.
resultSelector: Type: SystemFuncTFirst, TSecond, TResult
Function to apply to each pair of elements.

Type Parameters

TFirst: Type of elements in first sequence.
TSecond: Type of elements in second sequence.
TResult: Type of elements in result sequence.

Return Value

Type: IEnumerableTResult
A sequence that contains elements of the two input sequences, combined by resultSelector.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerableTFirst. 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 results.

Examples

Copy

var numbers = { 1, 2, 3 };
var letters = { "A", "B", "C", "D" };
var zipped = numbers.ZipLongest(letters, (n, l) => n + l);

The zipped variable, when iterated over, will yield "1A", "2B", "3C", "0D" in turn.

Reference

ZipLongestExtension Class

ZipLongest Overload

MoreLinq.Extensions Namespace