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What is Rack middleware?
...equest, and post-process the response in any way.
As explained at: http://guides.rubyonrails.org/rails_on_rack.html#action-dispatcher-middleware-stack , Rails uses Rack middlewares for a lot of it's functionality, and you can add you own too with config.middleware.use family methods.
The advantag...
Using getopts to process long and short command line options
...ur shell path ahead of /usr/bin. On FreeBSD, install misc/getopt.
A quick guide to modifying the example code for your own program: Of the first few lines, all is "boilerplate" that should stay the same, except the line that calls getopt. You should change the program name after -n, specify short ...
Check if at least two out of three booleans are true
... and dare I say, useless. Micro-optimizations, when driven by the need, is guided by runtime profiling results, not human instincts (which are known to be terrible). You can certainly ask interviewees the process by which you'd optimize this further; that's more important than the result itself.
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Create directories using make file
...o worry about that now. will stick with the basic rules. :). Thank you for guiding. And i'm running "make" from toplevel directory only.
– Jabez
Dec 23 '09 at 6:49
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What is the difference between D3 and jQuery?
...dency injection and testability, consider AngularJS.
A General comparison guide from wikipedia.
I can see why someone would think they are similar. They use a similar selector syntax -- $('SELECTOR'), and d3 is an extremely powerful tool for selecting, filtering, and operating on html elements, es...
“Least Astonishment” and the Mutable Default Argument
...I'm well aware, but it's not worth the pitfall. You'll generally see style guides and linters unconditionally flag mutable default values as wrong for this reason. The explicit way to do the same thing is to stuff an attribute onto the function (function.data = []) or better yet, make an object.
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How to retrieve an element from a set without removing it?
...m in muh_set: break remains the optimal approach in Python 3.x. Curse you, Guido.
y u do this
Welcome to yet another set of Python 3.x timings, extrapolated from wr.'s excellent Python 2.x-specific response. Unlike AChampion's equally helpful Python 3.x-specific response, the timings below also ti...
Using global variables in a function
...ilis: It is common to upper case all letters: MY_GLOBAL = 5. See the Style Guide for Python Code.
– BlackJack
Jan 25 '18 at 17:46
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How to upload files to server using JSP/Servlet?
...eUpload to parse the multpart form data requests. It has an excellent User Guide and FAQ (carefully go through both). There's also the O'Reilly ("cos") MultipartRequest, but it has some (minor) bugs and isn't actively maintained anymore for years. I wouldn't recommend using it. Apache Commons FileUp...
Understanding Python super() with __init__() methods [duplicate]
...init__() which IMO is quite a bit nicer. The standard docs also refer to a guide to using super() which is quite explanatory.
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