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When should I use perror(“…”) and fprintf(stderr, “…”)?
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113
Calling perror will give you the interpreted value of errno, which is a thread-local error val...
Django: Display Choice Value
...ing your information via JSON (for instance in a pagination scenario)? Ideally without the overhead of instantiating the Models one by one and calling get_field_display().
– DylanYoung
Mar 23 '17 at 17:34
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What is the difference between join and merge in Pandas?
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pandas.merge() is the underlying function used for all merge/join behavior.
DataFrames provide the pandas.DataFrame.merge() and pandas.DataFrame.join() methods as a convenient way to access the capabilities of pandas.merge(). For example, df1.merge(right=df2, ...) is equiva...
What is the difference between AF_INET and PF_INET in socket programming?
... to do is to use AF_INET in your
struct sockaddr_in and PF_INET in your call to socket(). But
practically speaking, you can use AF_INET everywhere. And, since
that's what W. Richard Stevens does in his book, that's what I'll do
here.
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Android Calling JavaScript functions in WebView
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Community♦
111 silver badge
answered Dec 2 '10 at 0:43
user163757user163757
6,08588 gold ...
Reverse a string in Python
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@Tanner [::-1] is fastest because it does not call any external functions, rather it's using slicing, which is highly-optimized in python. ''.join(list(reversed(s))) makes 3 function calls.
– hd1
Apr 27 at 13:51
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Split list into multiple lists with fixed number of elements
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answered Sep 18 '11 at 2:56
Kipton BarrosKipton Barros
19.7k33 gold badges6161 silver badges7575 bronze badges
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What is the difference between float and double?
...i.e. using one or the other does not seem to affect the results. Is this really the case? When are floats and doubles interchangeable? What are the differences between them?
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What's the difference between BaseAdapter and ArrayAdapter?
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Here is the difference:
BaseAdapter is a very generic adapter that allows you to do pretty much whatever you want. However, you have to do a bit more coding yourself to get it working.
ArrayAdapter is a more complete implementation that works well for data in arrays or ArrayLists. Similarly,...
How can I convert immutable.Map to mutable.Map in Scala?
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answered Feb 19 '11 at 12:03
Kevin WrightKevin Wright
48.2k88 gold badges100100 silver badges152152 bronze badges
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