>>>>> "sw" == shawn wilson <ag4ve...@gmail.com> writes:
RD> Perl has no proper boolean values. Instead, the boolean operators RD> treat zero, undef, and the null string '' all as false. Anything else RD> is true. sw> to be pedantic, '0' is also false. it isn't exactly the same as 0. sw> come again with that? how is: sw> $string = 0; #different from sw> $string = '0'; sw> they both define $string as something, right? but they are different actual values. sure perl will convert from one to the other but i have run into issues with 0 vs '0'. i am comparing values from input data and from a db using json which stringifys its values. but it does it differently for 0 and '0' which made the comparisons fail. the module is checking the internal flags to see if something is a string or an integer and encoding the json accordingly. i had to force my string numbers to integers (by adding 0) to make it work correctly. and we aren't testing defined, but boolean. defined only checks for undef. uri -- Uri Guttman ------ u...@stemsystems.com -------- http://www.sysarch.com -- ----- Perl Code Review , Architecture, Development, Training, Support ------ --------- Gourmet Hot Cocoa Mix ---- http://bestfriendscocoa.com --------- -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
