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Pandas aggregate count distinct
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Python: using a recursive algorithm as a generator
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Hidden Features of MySQL
...SQLs I tuned today required using sub-queries. Having come from Oracle database world, things I took for granted weren’t working the same with MySQL. And my reading on MySQL tuning makes me conclude that MySQL is behind Oracle in terms of optimizing queries.
While the simple queries required for...
How can I get a resource “Folder” from inside my jar File?
... Thanks for the time and effort, but this does NOT work when your code base in within a .jar file and your resources are also in that .jar File. When you are inside a .jar file, you cannot create a File() and you also cannot get a URL for that folder... I personally came to peace with it and jus...
Removing the fragment identifier from AngularJS urls (# symbol)
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I needed to put <base href="/" /> in my index.html <head> section.
– nyxz
Dec 18 '15 at 13:51
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Better way to get type of a Javascript variable?
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Remember kids, manipulating JavaScript base objects can lead to compatibility and other weird issues. Try to use this sparingly in both libraries and larger projects!
– Alexander Craggs
Oct 31 '16 at 20:47
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How to write log to file
...efer f.Close()
log.SetOutput(f)
log.Println("This is a test log entry")
Based on the Go docs, os.Open() can't work for log.SetOutput, because it opens the file "for reading:"
func Open
func Open(name string) (file *File, err error) Open opens the named
file for reading. If successful, ...
How to convert JSON to XML or XML to JSON?
...boration of what my short (and heavily downvoted at some point) answer was based on -- there are many, many pitfalls if you do blind direct conversion. They may not be blocking issues for specific usage, but can also be very nasty for others.
– StaxMan
Jan 12 '...
How do I Sort a Multidimensional Array in PHP [duplicate]
...s example, $mdarray might be a two-dimensional array, like an array of database records. In this example, 0 is the index of the 'date' column in each record (or row). So you construct the $dates array (basically the same array, but with only that column), and tell the array_multisort function to sor...
How to sort my paws?
...aw impacts to determine which paw is which.
Try to identify the "pawprint" based purely on its shape.
Basically, the first method works with the dog's paws follow the trapezoidal-like pattern shown in Ivo's question above, but fails whenever the paws don't follow that pattern. It's fairly easy to ...