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Check if PHP session has already started
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edited Dec 5 '18 at 17:27
answered Aug 30 '13 at 22:20
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TimeSpan ToString format
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144
Try:
myTimeSpan.ToString("h'h 'm'm 's's'")
(Note that even spaces need to be quoted - that'...
How can I delete all of my Git stashes at once?
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edited Jun 20 at 9:12
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111 silver badge
answered Jul 6 '12 at 20:41
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ValueError: setting an array element with a sequence
...t isn't shaped like a multi-dimensional array. For example
numpy.array([[1,2], [2, 3, 4]])
or
numpy.array([[1,2], [2, [3, 4]]])
will yield this error message, because the shape of the input list isn't a (generalised) "box" that can be turned into a multidimensional array. So probably UnFilte...
Further understanding setRetainInstance(true)
...s below.
(This is edited a bit to make it easier to read.)
TestActivity@415a4a30: this()
TestActivity@415a4a30: onCreate()
TestActivity@415a4a30: Existing fragment not found.
TestFragment{41583008}: this() TestFragment{41583008}
TestFragment{41583008}: onAttach(TestActivity@415a4a30)
TestFragment{...
How do I set up a basic Ruby project?
I want to create a small Ruby project with 10 ~ 20 classes/files. I need some gems and I want to use RSpec as test framework.
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How to split a string literal across multiple lines in C / Objective-C?
...n be split into multiple lines using \.
Plain C:
char *my_string = "Line 1 \
Line 2";
Objective-C:
NSString *my_string = @"Line1 \
Line2";
Better approach
There's a better approach that works just for strings.
Plain C:
char *my_string = "Line 1 "
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Efficiency of purely functional programming
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According to Pippenger [1996], when comparing a Lisp system that is purely functional (and has strict evaluation semantics, not lazy) to one that can mutate data, an algorithm written for the impure Lisp that runs in O(n) can be translated to an alg...