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if else in a list comprehension [duplicate]
...d that if putting the condition in the beginning, then it requires both if and else (it must yield an element) - but putting it at the end, requires the if only (you can't put an else there).
– Jeppe
Dec 9 '18 at 13:07
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How do I ALTER a PostgreSQL table and make a column unique?
..._constraint UNIQUE ((payload::text), name);
– writofmandamus
Oct 6 '17 at 22:22
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Imitating a blink tag with CSS3 animations
..., it's much simpier. You can add webkit prefix to get it working in Chrome and Safari.
– m93a
Apr 15 '13 at 18:31
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Press alt + numeric in bash and you get (arg [numeric]) what is that?
Press alt + numeric in bash and you get (arg [numeric]) what is that?
7 Answers
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How do I show my global Git configuration?
... Thanks, I upvoted you both. I wanted to know the git config --list command because I can look at the effective config in a repository and I can differ local, global and system config with the appropriate parameter (--global, --local, --system). I'll accept your answer as soon as I'm able to beca...
Return 0 if field is null in MySQL
... @MarkByers can you show why Kevin's example in the comment is wrong and what it should actually be?
– Michael
Aug 10 '16 at 13:44
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Swift: Testing optionals for nil
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For those who are new to swift as I am and are wondering: You still have to unwrap xyz inside the if block. It's safe though, even if you force unwrap
– Omar
Jun 10 '19 at 1:05
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SVN: Folder already under version control but not comitting?
svn stat says its not under version control, so I try to add it, and then it tells me it is. When I do an svn ci , it doesn't get comitted, and doesn't show up when I try to browse to repository online.
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How to “return an object” in C++?
...t of the problem (I know the difference between having things on the stack and putting them on the heap).
8 Answers
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Dynamic array in C#
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The question (albeit short and undescriptive) isn't asking about a generic list - Question could be asking about dynamic[] msdn.microsoft.com/en-GB/library/dd264736.aspx (array of dynamic types) or ExpandoObject msdn.microsoft.com/en-us/library/… I c...