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How to shrink the .git folder
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@artefact2: thanks for the link! i've read it, and linus points out, that --aggressive will not reuse (good) deltas – which seem to no exist in this question, because the repository is huge. going the repack way will actually take a lot longer. git gc --aggress...
Keep SSH session alive [closed]
...g, create the file if it does not exist (the config file must not be world-readable, so run chmod 600 ~/.ssh/config after creating the file). To send the signal every e.g. four minutes (240 seconds) to the remote host, put the following in that configuration file:
Host remotehost
HostName remot...
Determining whether jQuery has not found any element
...potential confusion when someone unfamiliar with the nuances of Javascript reads the code. Not best practice as far as maintainability is concerned in my opinion.
– Matt Carr
Mar 10 '15 at 15:41
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Avoiding an ambiguous match exception
...m not 'young' and that sure sounds condescending. A programmer that cannot read new [] { typeof(string) } has other issues than maintaining code. The type is literally right there. Plus 'crazy one-liners' aren't relevant, your preferred style just adds redundant letters into this very line. I'd argu...
Error when changing to master branch: my local changes would be overwritten by checkout
... warning others which are begginers with git (they have to be beginners if reading this post) to be ready to say goodbye to any changes they made. I thought that time that changes done in one branch should stay on that branch until I checkout it again. Hint to newcomers who think that way too: use g...
How does Apple find dates, times and addresses in emails?
...tually developed a very long time ago called Apple Data Detectors. You can read more about it here:
http://www.miramontes.com/writing/add-cacm/
Essentially it parses the text and detects patterns that represent specific pieces of data, then applies OS-contextual actions to it. It's neat.
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PHP Session Security
...'s temp directory. Without any special thought or planning this is a world readable directory so all of your session information is public to anyone with access to the server.
As for maintaining sessions over multiple servers. At that point it would be better to switch PHP to user handled sessions ...
How to use GROUP_CONCAT in a CONCAT in MySQL
... Demo (scroll down as it has two result sets)
Edit There was a mistake in reading question, I had grouped only by id. But two group_contacts are needed if (Values are to be concatenated grouped by Name and id and then over all by id). Previous answer was
select
id,group_concat(concat(`name`,':',`...
What's the difference of strings within single or double quotes in groovy?
...ints "hi $a"
Also, the link given by julkiewicz in their answer is worth reading (esp. the part about GStrings not being Strings about 2/3 of the way down.
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Java recursive Fibonacci sequence
...(3) + fibonacci(2)
fibonacci(2) = fibonacci(1) + fibonacci(0)
Now you already know fibonacci(1)==1 and fibonacci(0) == 0. So, you can subsequently calculate the other values.
Now,
fibonacci(2) = 1+0 = 1
fibonacci(3) = 1+1 = 2
fibonacci(4) = 2+1 = 3
fibonacci(5) = 3+2 = 5
And from fibonacci se...