Other Special Characters

Special characters are used in conjunction with structural characters and literals to provide additional functionality or context within an Internet Object document. The following are the special characters used in the Internet Object format.

Symbol	Characters	Unicode	Application
?	Question Mark	U+003F	Shortcut for declaring optional member when suffixed to the key name in object schema
*	Asterisk	U+002A	Shortcut for declaring nullable member when suffixed to the key name in object schema. Also used to make schema accept undeclared variables.
-	Hyphen / Minus	U+002D	Represents negative value
+	Plus	U+002B	Represents positive value
$	Dollar	U+0024	Denotes a variable