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How to hide elements without having them take space on the page?
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An improvement: create a CSS class called hidden with display: none. Add the class to an element to hide it, remove it show. When removing it, the display property is restored to the element default.
– Alejandro C De Baca
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How to subtract 30 days from the current datetime in mysql?
...een added as a string. It is better to add the date in this way, from your calling code, than to use the NOW() function as it kills your caching.
SELECT * FROM table WHERE exec_datetime >= DATE_SUB('2012-06-12', INTERVAL 30 DAY);
You can use BETWEEN if you really just want stuff from this very...
“for line in…” results in UnicodeDecodeError: 'utf-8' codec can't decode byte
...me other encoding. Figure out what that encoding is and use it in the open call.
In Windows-1252 encoding for example the 0xe9 would be the character é.
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JavaScript regex multiline flag doesn't work
...is highly recommended to use the *? quantifier instead of * in order to avoid greediness. This will avoid catching the last <h1> of the document: that's probably not what you want and that's not efficient as the regexp will continue to look for <h1> until the end of the string even if it...
What is the difference between '>' and a space in CSS selectors?
...there are no other elements inbetween).
A B will select any B that are inside A, even if there are other elements between them.
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Create list of single item repeated N times
...rst glance it seems that repeat is the fastest way to create a list with n identical elements:
>>> timeit.timeit('itertools.repeat(0, 10)', 'import itertools', number = 1000000)
0.37095273281943264
>>> timeit.timeit('[0] * 10', 'import itertools', number = 1000000)
0.5577236771712...
PHP YAML Parsers [closed]
...olution. I dropped the one script into my scripts folder, included it, and called one method. It doesn't get easier than that, and now I'm going back to work - roadblock removed.
– Erick Robertson
Mar 6 '14 at 16:59
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Unable to locate tools.jar
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Install the Java SDK.
Add a System Environment Variable called JAVA_HOME with the value of JDK location.
Go to Control Panel\System and Security\System. Advanced System Settings, Environment Variables, System Variables, New... Example:
Variable Name:JAVA_HOME
Variable Value: C:\P...
What does it mean for a data structure to be “intrusive”?
...g the necessary information for the container. That means that on the one side the data type needs to be specialized depending on how it will be stored, on the other side it means that the data "knows" how it is stored and thus can be optimized slightly better.
Non-intrusive:
template<typename ...
Can an enum class be converted to the underlying type?
...t;>(e);
}
} // namespace util
enum SomeEnum : uint16_t { A, B };
void write(SomeEnum /*e*/) {
std::cout << "SomeEnum!\n";
}
void write(uint16_t /*v*/) {
std::cout << "uint16_t!\n";
}
int main(int argc, char* argv[]) {
SomeEnum e = B;
write(util::underlying_cast(...