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How to check if mysql database exists
...noying, imagine two threads trying to create the same database at the same time and what would happen if one failed. While it's not useful for determining if a database exists before trying to create it, it is useful for preventing collisions while multiple threads may be trying to create it.
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How to reload the current state?
...terceptor somewhere that gets triggered. I've tested this solution several times and it works fine.
– M K
Sep 8 '14 at 7:55
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Proper MIME type for OTF fonts
... a potential conflict with a future official name."
As it were, and over time, additional MIME types get added as standards are created and accepted, therefor we see examples of vendor specific MIME types such as vnd.ms-fontobject and the like.
UPDATE August 16, 2013: WOFF was formally registered...
Should I use tag for icons instead of ? [closed]
...ave millions of pages viewed each day. If they save 100 bytes of data each time a client request a page with this practice, they save a significant amount of bandwidth.
– Dalmas
Jun 21 '12 at 9:40
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Does JavaScript have the interface type (such as Java's 'interface')?
... however, in a rush to get the specification out the door they didn't have time to define what to do with it, so, at the present time, browsers don't do anything besides let it sit there and occasionally complain if you try to use it for something.
It is possible and indeed easy enough to create yo...
Hashset vs Treeset
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HashSet is much faster than TreeSet (constant-time versus log-time for most operations like add, remove and contains) but offers no ordering guarantees like TreeSet.
HashSet
the class offers constant time performance for the basic operations (add, remove, contains and...
extract part of a string using bash/cut/split
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Friend, you don't know how many times I've come back to this answer. Thank you!
– Joel B
May 24 '18 at 22:51
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How is the undo tree used in Vim?
...e.
There are two ways to traverse the undo tree. One is to go "back in time". g+ and g- will traverse all of the nodes in the tree in chronological or reverse-chronological order (which can be a bit confusing, because it can jump arbitrarily between undo branches, but if you do g- long enough y...
How to change the cursor into a hand when a user hovers over a list item?
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In light of the passage of time, as people have mentioned, you can now safely just use:
li { cursor: pointer; }
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Learn C first before learning Objective-C [closed]
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Every now and then I see how they solve a problem entirely in Obj-C, sometimes resulting in a very clumsy solutions. Usually I then replace some Obj-C code with pure C code (after all you can mix them as much as you like, the content of an Obj-C method can be entirely, pure C code). Without any in...