Functions Documentation
View Function Edit Function
Name isInt
Syntax (isInt expr) -> True/Nil
Argument List expr: The expression you want to test for being an integer.
Returns boolean: True if expression is an integer. Nil otherwise.
Category condition query
Description Checks to see if the expression is an integer and if it is returns True. Otherwise returns Nil.
Example 
(isInt "Betel")
Returns Nil. 
(isInt 45)

Returns True.
Comment Useful in error checking like all the condition query functions.