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Select between two dates with Django
... Is the "created_at" an arbitrary field in a model or is this the databases actual log of when the record was created?
– Bigbob556677
Mar 2 '18 at 14:22
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Can't use Swift classes inside Objective-C
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I spent about 4 hours trying to enable Swift in my Xcode Objective-C based project. My myproject-Swift.h file was created successfully, but my Xcode didn't see my Swift-classes. So, I decided to create a new Xcode Objc-based project and finally, I found the right answer! Hope this post will he...
ObjectiveC Parse Integer from String
...truncated).
I've made a macro that will convert input text to an NSNumber based on a locale argument which can be nil (if nil it uses device current locale).
#define stringToNumber(__string, __nullable_locale) (\
(^NSNumber *(void){\
NSLocale *__locale = __nullable_locale;\
if (!__locale) {\
__loca...
How to skip “Loose Object” popup when running 'git gui'
...and remove the after 1000 hint_gc line, or edit /usr/share/git-gui/lib/database.tcl and remove the body of the hint_gc procedure. (These file paths are on Cygwin - on other environments the files might be in a different locations. For Windows it is c:\Program Files\Git\mingw64\libexec\git-core\git-g...
Reverse colormap in matplotlib
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As a LinearSegmentedColormaps is based on a dictionary of red, green and blue, it's necessary to reverse each item:
import matplotlib.pyplot as plt
import matplotlib as mpl
def reverse_colourmap(cmap, name = 'my_cmap_r'):
"""
In:
cmap, name
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What is the performance cost of having a virtual method in a C++ class?
...ing as virtual. If all functions are virtual everything can be replaced by base classes - public, protected, private - everything becomes fair game. By accident or intention subclasses could then change the behavior of functions that then cause problems when used in the base implementation.
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Why do some functions have underscores “__” before and after the function name?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Response Content type as CSV
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64
Use text/csv as the content type.
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Backbone View: Inherit and extend events from parent
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Wouldn't it be easier to create specialized base constructor from Backbone.View that handles the inheritance of events up the hierarchy.
BaseView = Backbone.View.extend {
# your prototype defaults
},
{
# redefine the 'extend' function as decorated function of ...
Retain precision with double in Java
...for thirds". But sometimes a problem involves division, in which cases all bases not divisible by all prime factors of all denominators are about equally bad.
– Steve Jessop
Nov 27 '08 at 15:59
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