Re: Argument "" isn't numeric in division (/)

Argl. My fault. As often like on StackO, I have discovered the answer just after posting the question.

After using the debugger, the non-numeric value is on the left side of the expression (it is coming from a sql select and can also be null/empty in some circumstances).

The best programs are the ones written when the programmer is supposed to be working on something else. - Melinda Varian

Comment on Re: Argument "" isn't numeric in division (/)

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Re^2: Argument "" isn't numeric in division (/) by stevieb (Canon) on Jul 03, 2017 at 12:34 UTC
I have discovered the answer just after posting the question. That's called Rubber Duck Debugging, and it happens to the most of us.	[reply]
Re^3: Argument "" isn't numeric in division (/) by LanX (Saint) on Jul 03, 2017 at 12:38 UTC
I should start looking out for a rubber monk for my desk... Cheers Rolf _{(addicted to the Perl Programming Language and ☆☆☆☆ :) Je suis Charlie!} PS: what a splendid merchandising idea to generate income for the monastery! xD "Confess all your bugs, you mortal hacker!!!"	[reply]
Re^4: Argument "" isn't numeric in division (/) by stevieb (Canon) on Jul 03, 2017 at 12:45 UTC
I was considering flying home for a family visit, and while there, trying to figure out how to steal this rubber duck. If your duck size correlated with the size of problems it allowed you to solve, no issue would be insurmountable!	[reply]
Re^4: Argument "" isn't numeric in division (/) by Laurent_R (Canon) on Jul 03, 2017 at 17:16 UTC
I have a rubber penguin (Tux) on the top of my screen. Is it ok? Or does it need to be a duck? Funnily, it was distributed in a fair by Microsoft (manufactured as an advertisement for the MS cloud, I believe).	[reply]
Re^5: Argument "" isn't numeric in division (/) by afoken (Chancellor) on Jul 03, 2017 at 17:56 UTC
Re^3: Argument "" isn't numeric in division (/) by seki (Monk) on Jul 13, 2017 at 12:51 UTC
I don't play with ducks, the colleague that teached me Perl rather shown me the teddy bear's method: brian's Guide to Solving Any Perl Problem. The best programs are the ones written when the programmer is supposed to be working on something else. - Melinda Varian	[reply]