initial proc

Format

initial(Var)

Args

Var: A variable to find the initial value of.

This returns the original compile-time value of a variable. It could be used to reset a variable to its default value or to check if a variable has changed.

obj/verb/set_icon(I as null|icon)
   if(!I) I = initial(icon)
   icon = I

This example allows an object’s icon to be modified. If the user does not specify a new icon, it will be reset to the original one.

See also

• :: operator
• issaved proc
• vars list var (datum)