using Pandemonium; // use the namespace

var names = new List<string>()
{
    "Hachiman",
    "Yukino"
};

// from !Any
!names.Any(name => name == "Yui");
// to None
names.None(name => name == "Yui");

bool value = false;

// from !
if (!value)
// to
if (value.False())

int number = 7;

number
      .GreaterThanOrEqualTo(4)
      .Then(() => Console.WriteLine($"{number} is greater than or equal to 4")) // if
      .Otherwise(() => Console.WriteLine($"{number} is less than 4")); // else

string text = null;

text
    .NotNull()
    .Then(() => Console.WriteLine(text))
    .Otherwise(() => Console.WriteLine("text is required"));

// from
new DateTime(2020, 12, 31);
// to
31.December(2020);

// from 
TimeSpan.FromMilliseconds(1);
// to
1.Milliseconds();

// from
TimeSpan.FromSeconds(30);
// to
30.Seconds();

// from
TimeSpan.FromMinutes(15);
// to
15.Minutes();

// from
TimeSpan.FromHours(2);
// to
2.Hours();

// from
TimeSpan.FromDays(7);
// to
7.Days();

string numbers = "123 text".Where(value => value.Number()); // 123

string letters = "123 text".Where(value => value.Letter()); // text

// Predicate over replace
"123 text".Remove(value => value.Letter() || value.Whitespace()); // 123

var characters = new Dictionary<string, int>()
{
    ["Sora"] = 18,
    ["Shiro"] = 11
};

// Update
characters.Upsert("Shiro", 12);
// Insert
characters.Upsert("Stephanie", 18);