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How do you extract a column from a multi-dimensional array?
Does anybody know how to extract a column from a multi-dimensional array in Python?
20 Answers
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PHP: Storing 'objects' inside the $_SESSION
...(more or less; but see GET vs. PUT) but almost everything anybody cares to do with a web app requires state to be maintained somewhere. Acting as if pushing the state into nooks and crannies amounts to some kind of theoretical win is just wrong. State is state. If you use state, you lose the vari...
Check if image exists on server using JavaScript?
...d like to call a JavaScript function every minute or so that would roughly do the following scratch code...
11 Answers
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Reverting a single file to a previous version in git [duplicate]
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Let's start with a qualitative description of what we want to do (much of this is said in Ben Straub's answer). We've made some number of commits, five of which changed a given file, and we want to revert the file to one of the previous versions. First of all, git doesn't keep version n...
How do I query between two dates using MySQL?
... you could add an explanation so people will understand what you are doing.
– Franz Gleichmann
Dec 15 '16 at 6:39
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How do I alter the position of a column in a PostgreSQL database table?
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@Kent: Doubtful, the postgres devs go a long way to ensure data consistency and that would certainly apply to pg_dump. After all, what's the point of doing db backups if the restore is borked?
– Dana the Sane
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How do you determine the ideal buffer size when using FileInputStream?
... a method that creates a MessageDigest (a hash) from a file, and I need to do this to a lot of files (>= 100,000). How big should I make the buffer used to read from the files to maximize performance?
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How do you display code snippets in MS Word preserving format and syntax highlighting?
Does anyone know a way to display code in Microsoft Word documents that preserves coloring and formatting? Preferably, the method would also be unobtrusive and easy to update.
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Break a previous commit into multiple commits
Without creating a branch and doing a bunch of funky work on a new branch, is it possible to break a single commit into a few different commits after it's been committed to the local repository?
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How can I wait for a thread to finish with .NET?
... {
ThreadWorker worker = new ThreadWorker();
worker.ThreadDone += HandleThreadDone;
Thread thread1 = new Thread(worker.Run);
thread1.Start();
_count = 1;
}
void HandleThreadDone(object sender, EventArgs e)
{
// You should get the idea t...