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How can I troubleshoot my Perl CGI script?
...e a Perl script that isn't working and I don't know how to start narrowing down the problem. What can I do?
8 Answers
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What are POD types in C++?
... compatibility with C struct layout for that compiler, and pointer up- and down-casting. PODs "act like C types", non-PODs aren't guaranteed to do so. So if you want your type to portably act like a C struct, you must ensure that it is POD, so you need to know the difference.
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Cocoa Touch: How To Change UIView's Border Color And Thickness?
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I really don't like people being down voted without an explanation. It helps no-one.
– ICT1901
Mar 3 '18 at 17:14
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What's the canonical way to check for type in Python?
...e its .write() method!
Of course, sometimes these nice abstractions break down and isinstance(obj, cls) is what you need. But use sparingly.
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When should the volatile keyword be used in C#?
... volatile field. Volatile
fields are a sign that you are doing something downright crazy: you're
attempting to read and write the same value on two different threads
without putting a lock in place. Locks guarantee that memory read or
modified inside the lock is observed to be consistent, lo...
What does it mean to “program to an interface”?
...rly heady discussions, so I'd like to take the opportunity to break things down a bit for understanding why an interface is useful.
When I first started getting exposed to interfaces, I too was confused about their relevance. I didn't understand why you needed them. If we're using a language like...
set gvim font in .vimrc file
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For Windows do the following:
Note down the font name and font size from the "Edit-Select Font..." menu of "gvim.exec".
Then do :e $MYGVIMRC
Search for "guifont" string and change it to
set guifont=<font name as noted>:h<font size>
Save the file...
How can I safely create a nested directory?
...08, will mask a failure to create the directory. Don't feel bad for voting down - you don't like the answer. It's what votes are for.
– Blair Conrad
Nov 7 '08 at 20:35
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How to extract an assembly from the GAC?
...same version number), I received an error which only went away when I shut down the cmd window. Took me a few minutes of cursing to find out what was going wrong!
– NeilD
Dec 8 '10 at 9:00
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What does the leading semicolon in JavaScript libraries do?
... best answer was actually given in the question, so I will just write that down here for clarity:
The leading ; in front of immediately-invoked function expressions is there to prevent errors when appending the file during concatenation to a file containing an expression not properly terminated wit...