## String.Case
```pascal
function String.CamelCase(): String; constref;
function String.SnakeCase(): String; constref;
function String.UpperSnakeCase(): String; constref;
function String.KebabCase(): String; constref;
function String.PascalCase(): String; constref;
function String.SentenceCase(): String; constref;
function String.TitleCase(): String; constref;
```
Returns the string with different forms of capitalization.

Example
```pascal
var
  str: String = 'HELLO WORLD';
begin
  WriteLn str.TitleCase(); //Prints 'Hello World'
end;
```


- - -

## String.Is
```pascal
function String.IsURL(): Boolean;
function String.IsEmail(): Boolean;
function String.IsUUID(): Boolean;
function String.IsUUIDV4(): Boolean;
function String.IsRefreshToken(): Boolean;
```
Checks if a string is a certain "thing" with some predefined regex patterns.