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Difference between setUp() and setUpBeforeClass()
When unit testing with JUnit, there are two similar methods, setUp() and setUpBeforeClass() . What is the difference between these methods? Also, what is the difference between tearDown() and tearDownAfterClass() ?
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drag drop files into standard html file input
These days we can drag & drop files into a special container and upload them with XHR 2. Many at a time. With live progress bars etc. Very cool stuff. Example here.
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How can I remove the search bar and footer added by the jQuery DataTables plugin?
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As good as @antpaw comment is, and seems to work in most cases, it doesn't work if there is filtering going on for each column, like in this example :datatables.net/release-datatables/extras/FixedColumns/… . Be aware!
– Janis Peisen...
Most efficient way to check for DBNull and then assign to a variable?
...to avoid. By writing row.IsNull(columnName) you're reading it once already and reading it again. Not saying that will make a difference, but theoretically it can be less efficient..
– nawfal
Feb 6 '13 at 16:31
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Reusable library to get human readable version of file size?
..., 'Yi', suffix)
Supports:
all currently known binary prefixes
negative and positive numbers
numbers larger than 1000 Yobibytes
arbitrary units (maybe you like to count in Gibibits!)
Example:
>>> sizeof_fmt(168963795964)
'157.4GiB'
by Fred Cirera
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support FragmentPagerAdapter holds reference to old fragments
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You are running into a problem because you are instantiating and keeping references to your fragments outside of PagerAdapter.getItem, and are trying to use those references independently of the ViewPager. As Seraph says, you do have guarantees that a fragment has been instantiated/add...
Height equal to dynamic width (CSS fluid layout) [duplicate]
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All you need to do is include the jQuery script and css styles. Check full code at jsfiddle.net/n6DAu/24
– Hussein
Jul 28 '11 at 6:12
36
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Split by comma and strip whitespace in Python
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Use list comprehension -- simpler, and just as easy to read as a for loop.
my_string = "blah, lots , of , spaces, here "
result = [x.strip() for x in my_string.split(',')]
# result is ["blah", "lots", "of", "spaces", "here"]
See: Python docs on List Comp...
How does Apple find dates, times and addresses in emails?
...n an email contains a date, time or location, the text becomes a hyperlink and it is possible to create an appointment or look at a map simply by tapping the link. It not only works for emails in English, but in other languages also. I love this feature and would like to understand how they do it.
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FixedThreadPool vs CachedThreadPool: the lesser of two evils
...similar question suggested they were better suited for longer lived tasks and with my very limited knowledge of multithreading, I considered the average life of the threads (several minutes) " long lived ".
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