use strict;
my $var = NULL;
will raise an error of Bareword "NULL" not allowed while "strict subs" in use
views:
113answers:
1
+18
A:
There's no NULL in perl. Use undef when you mean "no value". Also, variables are undefined by default. So my $var is equivalent to my $var = undef.
eugene y
2010-07-11 19:16:20
+1. and powerboy, be careful when checking whether something is defined. it's "if( defined $var )" NOT "if( not undef $var )". the latter will undefine $var.
eruciform
2010-07-11 19:18:40
@eruciform - Good point! Thanks!
powerboy
2010-07-11 19:39:22
+1 for undefined by default.
fengshaun
2010-07-11 23:58:25