View source for $null

Returns absolutely nothing. Used to compare values in [[If-Then-Else]] checks.

 $null

* This identifier has no options or parameters.

== Example ==
The first example shows the common use, if any, of $null.

 if (%age == $null) { [[echo]] -a the variable does not exist }
 elseif (%age != $null) { echo -a the variable does exist! }

The same thing can be done with simple checking, as shown below.

 if (!%age) { echo -a the variable does not exist as it returns nothing when called }
 else { echo -a it does not not exist, hence it must exist, woho. }

[[Category:Other Identifiers]]