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Convert pandas dataframe to NumPy array
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15 Answers
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Using a bitmask in C#
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edited Jul 16 '10 at 3:35
answered Jul 16 '10 at 2:17
Dan...
How ListView's recycling mechanism works
...t(13871): getview 3 android.widget.RelativeLayout@406082c0
01-01 14:49:36.656: I/System.out(13871): getview 4 android.widget.RelativeLayout@406082c0
01-01 14:49:36.666: I/System.out(13871): getview 5 android.widget.RelativeLayout@406082c0
01-01 14:49:36.666: I/System.out(13871): getview 0 android.wi...
CSRF Token necessary when using Stateless(= Sessionless) Authentication?
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159
I found some information about CSRF + using no cookies for authentication:
https://auth0.com/...
Which concurrent Queue implementation should I use in Java?
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55
Basically the difference between them are performance characteristics and blocking behavior.
T...
What is the difference between Pan and Swipe in iOS?
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answered Mar 27 '12 at 23:45
ricksterrickster
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Find first element by predicate
...the following test:
List<Integer> list = Arrays.asList(1, 10, 3, 7, 5);
int a = list.stream()
.peek(num -> System.out.println("will filter " + num))
.filter(x -> x > 5)
.findFirst()
.get();
System.out.println(a);
Which outputs:
will ...
Would it be beneficial to begin using instancetype instead of id?
... it isn't this.
– Steven Fisher
Feb 5 '13 at 19:17
10
it's useful for convenience constructors mo...
Rails formatting date
...ith century (can be negative, 4 digits at least)
-0001, 0000, 1995, 2009, 14292, etc.
%C - year / 100 (round down. 20 in 2009)
%y - year % 100 (00..99)
%m - Month of the year, zero-padded (01..12)
%_m blank-padded ( 1..12)
%-m no-padded (1..12)
%B - The full...
Why does Python code run faster in a function?
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540
You might ask why it is faster to store local variables than globals. This is a CPython implem...