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Is there a simple way to remove multiple spaces in a string?
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How do malloc() and free() work?
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OK some answers about malloc were already posted.
The more interesting part is how free works (and in this direction, malloc too can be understood better).
In many malloc/free implementations, free does normally not return the memory to the operating system (or at least only in...
Change column type from string to float in Pandas
...supports pd.NA (pandas' object to indicate a missing value).
Read on for more detailed explanations and usage of each of these methods.
1. to_numeric()
The best way to convert one or more columns of a DataFrame to numeric values is to use pandas.to_numeric().
This function will try to change non-...
Standard Android Button with a different color
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How do I detect if Python is running as a 64-bit application? [duplicate]
...problematic and expensive. Use sys.maxsize > 2**32 since Py2.6. Or even more reliable and compatible at least since Py2.3: struct.calcsize('P') == 8. Or ctypes.sizeof(ctypes.c_void_p) == 8. There can be builds with gcc option -mx32 or so, which are 64bit apps, but use 32bit pointers as default. '...
Ukkonen's suffix tree algorithm in plain English
...ere is one step for every character of the string. Each step might involve more than one individual operation, but we will see (see the final observations at the end) that the total number of operations is O(n).
So, we start from the left, and first insert only the single character
a by creating an...
Pandas selecting by label sometimes return Series, sometimes returns DataFrame
...ntry in the index I get back a Series, but when I select an entry that has more then one entry I get back a data frame.
7 A...
Select all child elements recursively in CSS
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I know, it's a bit ugly. You could instead try writing more precise selectors, chances are, this would work too. (e.g. #head ul → #head ul#navi)
– anroesti
Feb 5 '11 at 22:46
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How to return dictionary keys as a list in Python?
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@naught101 Yes, .keys() is way more clear on what goes on.
– Felix D.
May 27 '18 at 21:43
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C# XML Documentation Website Link
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Hmmm, my apologies. I did a little more research (see here and here) -- and it looks like the VS IDE won't display those hyperlinks, but a documentation tool such as SandCastle would be able to display them.
– dizzwave
Au...