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List comprehension vs map
...easier to read to me: data = map(str, some_list_of_objects). Some other ones... operator.attrgetter, operator.itemgetter, etc.
– Gregg Lind
Aug 8 '09 at 16:06
60
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converting Java bitmap to byte array
...estion has the Android tag, converting bytes back to a Bitmap can also be done with a one-liner: Bitmap bmp = BitmapFactory.decodeByteArray(bytes, 0, bytes.length) where bytes is your byte array
– automaton
Aug 29 '18 at 22:22
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Python Nose Import Error
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Are you in a virtualenv? In my case, nosetests was the one in /usr/bin/nosetests, which was using /usr/bin/python. The packages in the virtualenv definitely won't be in the system path. The following fixed this:
source myvirtualenv/activate
pip install nose
which nosetests
/home...
Why do people say that Ruby is slow? [closed]
...Ms) would probably choke on a resource-constrained computer such as smartphones.
Remember that a lot of the processing on your web applications is actually done by software developed in C. e.g. Apache, Thin, Nginx, SQLite, MySQL, PostgreSQL, many parsing libraries, RMagick, TCP/IP, etc are C progr...
How to check the extension of a filename in a bash script?
... a nightly build script in bash.
Everything is fine and dandy except for one little snag:
9 Answers
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Why is extending native objects a bad practice?
...to define your own class (perhaps a subclass) instead of changing a native one. That way you will not break anything at all.
The ability to change how a class works without subclassing it is an important feature of any good programming language, but it is one that must be used rarely and with cauti...
Listview Scroll to the end of the list after updating the list
...ace at the top of the view instead of the bottom, which is not always what one wants.
– Mason Lee
Aug 11 '11 at 20:36
2
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What's the best way to inverse sort in scala?
...ome numeric value
list.sortBy(- _.size)
More generally, sorting may be done by method sorted with an implicit Ordering, which you may make explicit, and Ordering has a reverse (not the list reverse below)
You can do
list.sorted(theOrdering.reverse)
If the ordering you want to reverse is the i...
What is the meaning of symbol $ in jQuery?
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that link doesnt work anymore, the one that you said explains in detail $
– user734028
Mar 29 '18 at 14:06
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Test if a vector contains a given element
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what about getting all appearances, not just the first one?
– StatsSorceress
Mar 15 '18 at 0:54
Ma...