Types and strings

Type	Meaning
int	Signed 64-bit integer
byte	Unsigned byte, useful for file contents
bool	true or false
string	Immutable managed byte string
void	A method returns no value
T[]	Mutable managed array

Class instances are reference values. null is assignable to strings, classes, and arrays. Accessing a null receiver is a runtime error. Enums provide named numeric constants. The current release has no floating-point values or wider integer types.

Strings

string message = "Count: " + 42 + ", active: " + true;
int size = message.Length;
string firstByte = message[0];
bool same = "hello" == "hel" + "lo";

+ concatenates strings with strings, integers, and booleans. Equality compares contents. Length and indexing work on bytes, not Unicode code points. Native source literals support ASCII plus \n, \r, \t, \\, and \" escapes.

Local inference

var count = 42;
var text = "hello";

var is local type inference, not a dynamic type. It needs an initializer and is not valid for parameters, fields, or method returns. The released compiler supports classes and enums, not structs, interfaces, inheritance, or generics.