Variable declarations must be in the following format:

<Variable Declaration>;
[<Variable Declaration>;]

<Variable Declaration> =

   <Variable Name> [,<Variable Name>]: <Type Name> = <Default Expression>

The <Variable Name> and <Type Name> elements must follow the rules for identifiers covered in the Introduction topic, and each variable declaration must be terminated with a semicolon statement terminator (;).

The <Default Expression> element can be any valid expression that does not contain any variable, function, or procedure references. In other words, the expression can only contain other constant references, or literal expressions. Examples of literal expressions can also be found in the Introduction topic. The <Default Expression> element is used to initialize the variable to a specific value. This is useful in ensuring that a variable is not in an uninitialized state when it is referenced in code.