As we know we can declare an array with default values:
int[] arr = new int[10];
This will create an array of 10 integers with each element of the array having value 0 (the default value of type int).
To create an array initialized with a non-default value, we can use Enumerable.Repeat from the System.Linq Namespace:
To create a bool array of size 10 filled with "true"
bool[] booleanArray = Enumerable.Repeat(true, 10).ToArray();
To create an int array of size 5 filled with "100"
int[] intArray = Enumerable.Repeat(100, 5).ToArray();
To create a string array of size 5 filled with "C#"
string[] strArray = Enumerable.Repeat("C#", 5).ToArray();