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How to create index on JSON field in Postgres?
...to do integer comparisons instead of string comparisons, you have to add a cast: ((info->>'name')::INT).
– jpmc26
Oct 6 '15 at 19:44
13
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How to read and write excel file
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in fact, just remove the (short) cast poi.apache.org/apidocs/org/apache/poi/hssf/usermodel/…
– nicolallias
Dec 23 '14 at 14:18
1
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Spring RestTemplate timeout
... The above code doesn't work in latest Spring. It gives ClassCastException java.lang.ClassCastException: org.springframework.http.client.InterceptingClientHttpRequestFactory cannot be cast to org.springframework.http.client.HttpComponentsClientHttpRequestFactory
–...
What is the Swift equivalent of isEqualToString in Objective-C?
... operator because String in swift is of type struct not class. If you type cast your text/string as NSString you can compare using === operator.
– sanjana
Jun 14 '15 at 1:05
3
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Generics in C#, using type of a variable as parameter [duplicate]
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One way to get around this is to use implicit casting:
bool DoesEntityExist<T>(T entity, Guid guid, ITransaction transaction) where T : IGloballyIdentifiable;
calling it like so:
DoesEntityExist(entity, entityGuid, transaction);
Going a step further, you can ...
hasNext in Python iterators?
...ss of the Python community is staggering.
– Jonathan Cast
Aug 21 '17 at 13:48
nice answer, I'm copying this for ilustr...
Good tutorial for using HTML5 History API (Pushstate?) [closed]
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Here is a great screen-cast on the topic by Ryan Bates of railscasts. At the end he simply disables the ajax functionality if the history.pushState method is not available:
http://railscasts.com/episodes/246-ajax-history-state
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Remove all the elements that occur in one list from another
...[2,3,5,8])
# v `filter` returns the a iterator object. Here I'm type-casting
# v it to `list` in order to display the resultant value
>>> list(filter(lambda x: x not in l2, l1))
[1, 6]
Performance Comparison
Here I am comparing the performance of all the answers mentioned her...
How do I seed a random class to avoid getting duplicate random values [duplicate]
...blic Random()
: this(Environment.TickCount) {
}
This avoids having to cast DateTime.UtcNow.Ticks from a long, which is risky anyway as it doesn't represent ticks since system start, but "the number of 100-nanosecond intervals that have elapsed since 12:00:00 midnight, January 1, 0001 (0:00:00 U...
How to print to console when using Qt
...move_reference<C>::type>::type& no_const(C* c) { return const_cast<typename std::remove_const<typename std::remove_reference<C>::type>::type&>(*c); } Use: no_const(this).method(). You could inject that function as a method into the class, and then you wouldn't even...