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Select datatype of the field in postgres
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174
You can get data types from the information_schema (8.4 docs referenced here, but this is not ...
can we use xpath with BeautifulSoup?
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169
Nope, BeautifulSoup, by itself, does not support XPath expressions.
An alternative library, l...
Parse config files, environment, and command-line arguments, to get a single collection of options
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11 Answers
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What is an example of the Liskov Substitution Principle?
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31 Answers
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Java: Get first item from a collection
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12 Answers
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UIPanGestureRecognizer - Only vertical or horizontal
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214
Just do this for the vertical pan gesture recognizer, it works for me:
- (BOOL)gestureRecogniz...
Setting ANDROID_HOME enviromental variable on Mac OS X
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Connecting overloaded signals and slots in Qt 5
...usually void (for signals).
So I've found myself sometimes using this C++11 snippet:
template<typename... Args> struct SELECT {
template<typename C, typename R>
static constexpr auto OVERLOAD_OF( R (C::*pmf)(Args...) ) -> decltype(pmf) {
return pmf;
}
};
U...
How can strings be concatenated?
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183
The easiest way would be
Section = 'Sec_' + Section
But for efficiency, see: https://waymoo...