Null Guard Example

NullGuardExample.cs

#nullable enable

using System;

namespace Sample
{
    public class NullGuardExample
    {
        public string NotNullableProperty { get; }
        public string? NullableProperty { get; }

        public NullGuardExample(
            string notNullableProperty,
            string? nullableProperty)
        {
            NotNullableProperty = notNullableProperty ?? throw new ArgumentNullException(nameof(notNullableProperty));
            NullableProperty = nullableProperty;
        }
    }
}