LINQ Repeat

Summary: in this tutorial, you will learn how to use the LINQ Repeat() method to generate a sequence that contains one repeated value.

Introduction to the LINQ Repeat() method

The Repeat() method generates a sequence that contains one repeated value:

IEnumerable<TResult> Repeat<TResult> (TResult element, int count);Code language: C# (cs)

In this syntax:

• TResult represents the type of value to be repeated in the result sequence.
• element has the type TResult, which represents the value to be repeated.
• count is an integer that denotes the number of times to repeat the element in the generated sequence.

The Repeat() method returns an IEnumerable<T> that contains the repeated elements count times.

LINQ Repeat() method example

Let’s take some examples of using the Repeat() method.

1) Using the Repeat() method to generate a sequence of numbers

The following example uses the Repeat() method to generate a sequence of four numbers 9:

using static System.Console;


var numbers = Enumerable.Repeat(9, 4);
foreach (var number in numbers)
{
    WriteLine(number);
}Code language: C# (cs)

Output:

9
9
9
9Code language: C# (cs)

2) Using the Repeat() method to generate a sequence of strings

The following example uses the Repeat() method to generate a sequence of strings:

using static System.Console;

var messages = Enumerable.Repeat("bye", 3);
foreach (var message in messages)
{
    WriteLine(message);
}Code language: C# (cs)

Output:

bye
bye
byeCode language: plaintext (plaintext)

Summary

• Use LINQ Repeat() method to generate a sequence that contains an element repeated N times.