2D Array. Set all values to specific value

Question

To assign specific value to 1D array I\'m using LINQ like so:

        int[] nums = new int[20];
        nums = (from i in nums select 1).ToArray()         


        

Answer 1

You can create a simple method that loops over all elements and initializes them:

public static void Fill2DArray(T[,] arr, T value)
{
    int numRows = arr.GetLength(0);
    int numCols = arr.GetLength(1);

    for (int i = 0; i < numRows; ++i)
    {
        for (int j = 0; j < numCols; ++j)
        {
            arr[i, j] = value;
        }
    }
}

This uses the same syntax as Array.Fill and will work for an array of any type