Variables

Variables allow values to be dynamically stored, changed, and outputted. MCA supports dynamically-typed variables, that is, variables do not have a preset required type.

Usage

Accessing a variable can be done by simply using the variables name. For example, the following code will output 'Hello, World!'

message = "Hello, World!";
message_length = .str_len(message);

/say The message "{message}" is {message_length} character(s) long.;

// becomes:
/say The message "Hello, World!" is 13 character(s) long.;

Declaration

Variables are created, or 'declared', the first time they are set. This means that trying to use a variable before it has been set will result in a syntax error. However, variables can be set to null if they do not need a value yet.

/say {something}; // syntax error


something = null;
/say {something};

// becomes:
/say null

Scope

Variables are only available in the block that they are defined in. As a result, variables defined inside a block cannot be accessed from outside of the block.