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When to use lambda, when to use Proc.new?
...e proc itself
In a Proc.new-created proc, the return statement is a little more surprising: it returns control not just from the proc, but also from the method enclosing the proc!
Here's lambda-created proc's return in action. It behaves in a way that you probably expect:
def whowouldwin
mylam...
MySQL “incorrect string value” error when save unicode string in Django
...f 255 and some kind of index on it (e.g. unique). Because utf8mb4 uses 33% more space than utf-8 you'll need to make these fields 33% smaller.
In this case, change the max_length from 255 to 191.
Alternatively you can edit your MySQL configuration to remove this restriction but not without some ...
Convert seconds to HH-MM-SS with JavaScript?
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Set EditText cursor color
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oh man that is SO much more efficient than conjuring up a drawable for the cursor to be black!! I love Android to death but this is such an incredibly bad default behavior... someone really needs to be smacked for it.
– Yevgen...
How to align a to the middle (horizontally/width) of the page [duplicate]
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How to uninstall the “Microsoft Advertising SDK” Visual Studio extension?
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Wish I could upvote this more than once. I have had to do this on five different machines running VS2013 Community Edition.
– dub stylee
Mar 3 '15 at 0:03
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Is the “struct hack” technically undefined behavior?
...ous pointer arithmetic could then be made to trap - see e.g. CCured. On a more philosophical level, it doesn't matter whether no possible implementation could catch you, it's still undefined behavior (there are, iirc, cases of undefined behavior that would require an oracle for the Halting Problem ...
How do I calculate the date six months from the current date using the datetime Python module?
...swer would fail miserably. So one should keep in mind that the answers are more valuable the more generalized they are.
– Daniel F
May 24 '14 at 20:34
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How to create a self-signed certificate for a domain name for development?
...t for makecert.exe to be in my path. For the certificates I thought I'd be more secure and use -a SHA512 -len 8192 -- it took forever to generate. And as I suspected it might, it had zero impact on what level of encryption IIS used. By default IIS uses 128-bit, you have to do group policy stuff to c...
Difference between EXISTS and IN in SQL?
...e [field] in (1, 2, 3)
When you have a table in an in statement it makes more sense to use a join, but mostly it shouldn't matter. The query optimiser should return the same plan either way. In some implementations (mostly older, such as Microsoft SQL Server 2000) in queries will always get a nest...