Literal values

Boolean

To create a boolean value there are just the usual two keywords:

true
false

Integer

Integers can be created via:

Decimals, e.g. 1234
Hexadecimals with a 0x prefix, e.g 0x12abcd
Octal numbers with a 0o prefix, e.g 0o1234
Binary numbers with a 0b prefix, e.g. 0b010111

To improve readability of large numbers an _ can be added between any digit:

e.g. one million: 1_000_000
Some readable hex: 0x1111_ffff
Some binary: 0b1111_0000_0101_1010

Float

Floating point numbers can be created via:

Decimals, e.g. 12.34
Exponential/scientific notation, e.g. 1.234e-5

Strings

String values can be created using double quotes, e.g.

"Hello world"

Inside a string the following escape sequences are allowed:

\\ to insert a backslash
\" to insert a double-quote (without terminating the string itself)
\n a line feed
\r a carriage return
\t a tabulator

String interpolation

In addition to static strings, c-sharp like string interpolation (i.e. strings with placeholders) are supported by starting with a $", e.g.

const a = 1234
const b = "Hello"

$"{b} world {a}"

will produce the string Hello world 1234

Like in c-sharp, the placeholders can formatted via the {<interpolationExpression>[,<alignment>][:<formatString>]} pattern, e.g.

const c = 12.34

$"a fixed point {c,10:N4}"

will produce the string a fixed point 12.3400

Refer to https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/tokens/interpolated for a detailed description of the various formatting options.