This is a question of style.
My app has text fields to display a number, and with a command I format it like
a phone number. So for the second phone number, sometime there is not a second
phone (or fax). So my command to format the 2nd phone number logs an error to
the console when I run it:
NSString *formattedFax = [NSString stringWithFormat:@"%...@-%@-%@",
[originalFax substringWithRange:NSMakeRange(0,3)], etc...
*** -[NSCFString substringWithRange:]: Range or index out of bounds
But if there is not a second phone/fax number, I don't really care if this line
fails. I certainly *could* write a check like "if (originalFax != @"") then...
continue with function". But would that take more time to process?
So SHOULD I write the check to make sure the data is valid or not? Or just let
the function fail because its faster and has no lasting impact? Is it OK if
this line quietly (to the user) fails?
Thanks, Chris
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