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Simple way to calculate median with MySQL
What's the simplest (and hopefully not too slow) way to calculate the median with MySQL? I've used AVG(x) for finding the mean, but I'm having a hard time finding a simple way of calculating the median. For now, I'm returning all the rows to PHP, doing a sort, and then picking the middle row, but ...
Undoing accidental git stash pop
...ink there are always two commits for a stash, since it preserves the index and the working copy (so often the index commit will be empty). Then git show them to see the diff and use patch -R to unapply them.
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How to query nested objects?
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I don't know, just wondering, and thought it may sometimes be useful.
– trysis
May 2 '14 at 17:09
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Why does this (null || !TryParse) conditional result in “use of unassigned local variable”?
...se, so I'm set for now. Thanks for your insight!
– Brandon Martinez
Apr 30 '13 at 17:39
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@NominS...
Persistent :set syntax for a given filetype?
I'm working on a Symfony2 project which uses Twig, and the filetypes are myfile.html.twig . Vim doesn't automatically detect the syntax highlighting and so applies none. I can use :set syntax=HTML after I've opened the file but this is a pain when jumping between files.
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How to override to_json in Rails?
...def to_json(options)
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end
Longer explanation of to_json, as_json, and rendering:
In ActiveSupport 2.3.3, as_json was added to address issues like the one you have encountered. The creation of the json should be separate from the rendering of the json.
Now, anytime to_json is called on an ...
Node.js get file extension
...ers after the last dot, so file names like app.css.gz will only return .gz and not .css.gz, which may or may not be what you want.
– xentek
Feb 23 '14 at 6:21
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Why does “while(true)” without “Thread.sleep” cause 100% CPU usage on Linux but not on Windows?
...s say you have 4 cores:
With IRIX mode on, 1 fully utilized core is 100% and 4 cores are 400%.
With IRIX mode off, 1 fully utilized core is 25% and 4 cores are 100%.
This means that by default, top on Linux will show an infinite loop as ~100% and Windows will show it as ~25%, and it means exac...
Why should I implement ICloneable in c#?
Can you explain to me why I should inherit from ICloneable and implement the Clone() method?
4 Answers
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Should all jquery events be bound to $(document)?
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No - you should NOT bind all delegated event handlers to the document object. That is probably the worst performing scenario you could create.
First off, event delegation does not always make your code faster. In some cases, it's is advantageous and in some cases not....