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Printf width specifier to maintain precision of floating-point value
...hich can be applied to a floating point specifier that would automatically format the output to the necessary number of significant digits such that when scanning the string back in, the original floating point value is acquired?
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Bring element to front using CSS
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good point about all elements must have z-index for it to work. thanks!
– Salah Saleh
Feb 19 '16 at 18:48
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Pandas - How to flatten a hierarchical index in columns
...g entries in your columns) you could:
df.columns = [' '.join(col).strip() for col in df.columns.values]
Note: we must strip the whitespace for when there is no second index.
In [11]: [' '.join(col).strip() for col in df.columns.values]
Out[11]:
['USAF',
'WBAN',
'day',
'month',
's_CD sum',
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Regex Named Groups in Java
It is my understanding that the java.regex package does not have support for named groups ( http://www.regular-expressions.info/named.html ) so can anyone point me towards a third-party library that does?
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node.js global variables?
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Could you provide a little bit more information please? Is this part of javascript or part of node? Is it a good pattern to follow? As in should I do this or should I use express set? Thanks
– Harry
Mar 28 '11 at 3:34
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How many concurrent AJAX (XmlHttpRequest) requests are allowed in popular browsers?
... Wow. This is a good trick. This also explains why tile-servers for map engines create a number of fake sub-domains (typically something like maps1.whatever.com, maps2.whatever.com, maps3.whatever.com) to accelerate things.
– meawoppl
May 23 '13 at 1...
Specifying rails version to use when creating a new application
... You should change this to the accepted answer since it works for Rails 2 and 3. Keltia's answer will no longer work if you have Rails 3 installed and want a Rails 2 app.
– Peter Brown
Feb 6 '11 at 15:03
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Programmatically generate video or animated GIF in Python?
...t I want to create a video from. Ideally I could specify a frame duration for each frame but a fixed frame rate would be fine too. I'm doing this in wxPython, so I can render to a wxDC or I can save the images to files, like PNG. Is there a Python library that will allow me to create either a vid...
How to get indices of a sorted array in Python
...ing like next:
>>> myList = [1, 2, 3, 100, 5]
>>> [i[0] for i in sorted(enumerate(myList), key=lambda x:x[1])]
[0, 1, 2, 4, 3]
enumerate(myList) gives you a list containing tuples of (index, value):
[(0, 1), (1, 2), (2, 3), (3, 100), (4, 5)]
You sort the list by passing it to...
PHP Get name of current directory
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Using basename(__DIR__) saved the day for me. Thanks a ton for sharing!
– Devner
Feb 28 '15 at 20:53
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