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Checking out Git tag leads to “detached HEAD state”
... I was lost the first time I looked over this answer but after I read the Git branching documentation: http://git-scm.com/book/en/Git-Branching-What-a-Branch-Is it was a lot clearer.
– mark stiles
May 30 '13 at 19:50
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Algorithm to generate all possible permutations of a list?
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There is already plenty of good solutions here, but I would like to share how I solved this problem on my own and hope that this might be helpful for somebody who would also like to derive his own solution.
After some pondering about t...
Mercurial: how to amend the last commit?
...new "Phases" feature to prevent updates that would change history that's already been made available outside of the local repository.
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How to change the default collation of a table?
...ch Remer Mar 28 '18 at 23:41
and
That seems quite important, glad I read the comments and thanks @RichRemer . Nikki , I think you should edit that in your answer considering how many views this gets. See here https://dev.mysql.com/doc/refman/8.0/en/charset-unicode-utf8.html and here What is t...
Multiple returns from a function
...ink the amount of typing saving is minimal and it makes the code harder to read, so I wouldn't do it myself. Nevertheless, here's a sample:
function getXYZ()
{
$x = 4;
$y = 5;
$z = 6;
return compact('x', 'y', 'z');
}
$array = getXYZ();
$x = $array['x'];
$y = $array['y'];
$z = $ar...
Dynamically Changing log4j log level
...the life cyle of the Logger. On reinitialization the configuration will be read and used as setting the level at runtime does not persist the level change.
UPDATE: If you are using Log4j 2 you should remove the calls to setLevel per the documentation as this can be achieved via implementation class...
What is monkey patching?
...s better than implicit so make sure that your code is context-insensitive, read "Goto considered harmful", etc...
– aoeu256
Sep 9 '19 at 16:35
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How to see the CREATE VIEW code for a view in PostgreSQL?
...e your view definition your original DLL will be lost and you will able to read the only the rewrited version of your view definition.
Not all views are rewrited but if you use sub-select or joins probably your views will be rewrited.
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Is it safe to use -1 to set all bits to true?
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Frankly I think all fff's is more readable. As to the comment that its an antipattern, if you really care that all the bits are set/cleared, I would argue that you are probably in a situation where you care about the size of the variable anyway, which would c...
How to plot two histograms together in R?
...mage you linked to was for density curves, not histograms.
If you've been reading on ggplot then maybe the only thing you're missing is combining your two data frames into one long one.
So, let's start with something like what you have, two separate sets of data and combine them.
carrots <- da...