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Use of *args and **kwargs [duplicate]
...(*args):
for count, thing in enumerate(args):
... print( '{0}. {1}'.format(count, thing))
...
>>> print_everything('apple', 'banana', 'cabbage')
0. apple
1. banana
2. cabbage
Similarly, **kwargs allows you to handle named arguments that you have not defined in advance:
&g...
Gradle: Execution failed for task ':processDebugManifest'
....gradle file
android {
compileSdkVersion 17
buildToolsVersion "17.0.0"
defaultConfig {
minSdkVersion 14
targetSdkVersion 16
}
}
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if A vs if A is not None:
...peration bool(); should return False or True, or their integer equivalents 0 or 1. When this method is not defined, __len__() is called, if it is defined, and the object is considered true if its result is nonzero. If a class defines neither __len__() nor __nonzero__(), all its instances are conside...
Node.js quick file server (static files over HTTP)
...
1140
A good "ready-to-use tool" option could be http-server:
npm install http-server -g
To use it:...
Using emit vs calling a signal as if it's a regular function in Qt
...n:
void W::foo()
{
QMetaObject::activate(this, &staticMetaObject, 0, 0);
}
And the code emit foo(); is pre-processed to simply foo();
emit is defined in Qt/qobjectdefs.h (in the open-source flavor of the source anyway), like this:
#ifndef QT_NO_EMIT
# define emit
#endif
(The define gu...
How to forward declare a C++ template class?
...
105
This is how you would do it:
template<typename Type, typename IDType=typename Type::IDType&...
Plurality in user messages
...
answered Nov 23 '10 at 8:57
slebetmanslebetman
86.5k1818 gold badges112112 silver badges141141 bronze badges
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How can I do test setup using the testing package in Go
...|
edited Apr 29 '19 at 12:04
030
7,17166 gold badges6060 silver badges8888 bronze badges
answered Dec 5 ...
Error handling principles for Node.js + Express.js applications?
...t(err);
});
Middleware syntax is valid in a get request.
As for D)
(07:26:37 PM) tjholowaychuk: app.error is removed in 3.x
TJ just confirmed that app.error is deprecated in favor of E
E)
app.use(function(err, req, res, next) {
// Only handle `next(err)` calls
});
Any middleware that ...
Set time to 00:00:00
...oblem resetting hours in Java. For a given date I want to set the hours to 00:00:00.
12 Answers
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