Comparing nullables without having to use a .HasValueCheck

program.cs

using System;

namespace comparingNullables
{
    public class Program
    {
        private int? nullableInt = default;
        private int nonNullableInt = 7;
        private bool? nullableBool = default;
        // default for bools is false, so let's use a value which
        // wont be equal to the nullable Value

        private bool nonNullableBool = true;
        private void ComparingNullableInts()
        {
            // consider this
            if (nullableInt.HasValue && nullableInt.Value == nonNullableInt)
            {
                Console.WriteLine("They are equal");
            }

            // vs this
            if (Nullable.Equals(nullableInt, nonNullableInt))
            {
                Console.WriteLine("They are equal");
            }

            // also consider this
            if (nullableInt.HasValue && nullableInt.Value > nonNullableInt)
            {
                Console.WriteLine($"nameof(nullableInt) is larger than nameof(nonNullableInt)");
            }

            // vs this
            if (Nullable.Compare(nullableInt, nonNullableInt) > 0)
            {
                Console.WriteLine($"nameof(nullableInt) is larger than nameof(nonNullableInt)");
            }
        }

        private void ComparingNullableEverything()
        {
            // consider this
            if ((nullableInt.HasValue && nullableInt.Value == nonNullableInt) &&
                (nullableBool.HasValue && nullableBool == nonNullableBool))
            {
                Console.WriteLine("Everything is equal");
            }

            // vs this
            if ((Nullable.Equals(nullableBool, nonNullableBool)) &&
                (Nullable.Equals(nullableInt, nonNullableInt)))
            {
                Console.WriteLine("They are equal");
            }
        }
        public void Main(string[] args)
        {
            ComparingNullableInts();
            ComparingNullableEverything();
        }
    }
}