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Showing content from https://docs.microsoft.com/en-us/dotnet/api/system.linq.enumerable.zip below:

Enumerable.Zip Method (System.Linq) | Microsoft Learn

Source:: Zip.cs

Source:: Zip.cs

Source:: Zip.cs

Source:: Zip.cs

Applies a specified function to the corresponding elements of two sequences, producing a sequence of the results.

public:
generic <typename TFirst, typename TSecond, typename TResult>
[System::Runtime::CompilerServices::Extension]
 static System::Collections::Generic::IEnumerable<TResult> ^ Zip(System::Collections::Generic::IEnumerable<TFirst> ^ first, System::Collections::Generic::IEnumerable<TSecond> ^ second, Func<TFirst, TSecond, TResult> ^ resultSelector);

public static System.Collections.Generic.IEnumerable<TResult> Zip<TFirst,TSecond,TResult>(this System.Collections.Generic.IEnumerable<TFirst> first, System.Collections.Generic.IEnumerable<TSecond> second, Func<TFirst,TSecond,TResult> resultSelector);

static member Zip : seq<'First> * seq<'Second> * Func<'First, 'Second, 'Result> -> seq<'Result>

<Extension()>
Public Function Zip(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)

Type Parameters

TFirst

The type of the elements of the first input sequence.

TSecond

The type of the elements of the second input sequence.

TResult

The type of the elements of the result sequence.

Parameters

second: IEnumerable<TSecond>

The second sequence to merge.

resultSelector: Func<TFirst,TSecond,TResult>

A function that specifies how to merge the elements from the two sequences.

Returns

An IEnumerable<T> that contains merged elements of two input sequences.

Exceptions Examples

The following code example demonstrates how to use the Zip method to merge two sequences.

int[] numbers = { 1, 2, 3, 4 };
string[] words = { "one", "two", "three" };

var numbersAndWords = numbers.Zip(words, (first, second) => first + " " + second);

foreach (var item in numbersAndWords)
    Console.WriteLine(item);

// This code produces the following output:

// 1 one
// 2 two
// 3 three

Dim numbers() As Integer = {1, 2, 3, 4}
Dim words() As String = {"one", "two", "three"}
Dim numbersAndWords = numbers.Zip(words, Function(first, second) first & " " & second)

For Each item In numbersAndWords
    Console.WriteLine(item)
Next

' This code produces the following output:

' 1 one
' 2 two
' 3 three

Remarks

This method is implemented by using deferred execution. The immediate return value is an object that stores all the information that is required to perform the action. The query represented by this method is not executed until the object is enumerated either by calling its GetEnumerator method directly or by using foreach in C# or For Each in Visual Basic.

The method merges each element of the first sequence with an element that has the same index in the second sequence. If the sequences do not have the same number of elements, the method merges sequences until it reaches the end of one of them. For example, if one sequence has three elements and the other one has four, the result sequence will have only three elements.