Anonymous user
Null object: Difference between revisions
m
→{{header|REXX}}: corrected a typo. -- ~~~~
(Updated D entry) |
m (→{{header|REXX}}: corrected a typo. -- ~~~~) |
||
Line 723:
With the SYMBOL built-in function, it can be determined if a variable is defined (or not).
<br>
The LENGTH built-in function can be used to see what the length of the value of a
<br>
A variable with a NULL value has a length of 0 (zero).
|