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CSS - Expand float child DIV height to parent's height
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What happens if a Android Service is started multiple times?
... run in one instance. However, everytime you start the service, the onStartCommand() method is called.
This is documented here
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Is gcc 4.8 or earlier buggy about regular expressions?
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<regex> was im...
What is hashCode used for? Is it unique?
... 2.0, the hash code provider is based on the
System.Collections.IEqualityComparer interface.
Basically, hash codes exist to make hashtables possible.
Two equal objects are guaranteed to have equal hashcodes.
Two unequal objects are not guaranteed to have unequal hashcodes (that's called a collis...
How to check if a variable exists in a FreeMarker template?
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99
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How to evaluate http response codes from bash/shell script?
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edited Jun 25 at 7:27
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answered Feb 8 '10 at 9:48
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std::function and std::bind: what are they, and when should they be used?
...meters_in_the_right_flipping_order = bind(memcpy, _2, _1, _3);
I don't recommend using it just because you don't like the API, but it has potential practical uses for example because:
not2(bind(less<T>, _2, _1));
is a less-than-or-equal function (assuming a total order, blah blah). This e...
Assign multiple columns using := in data.table, by group
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How to set the focus for a particular field in a Bootstrap modal, once it appears
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@keyur at codebins.com This event starts after modal is displaying, what if I have to starts event before modal is displayed
– Thomas Shelby
Sep 4 '15 at 12:51
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Jackson serialization: ignore empty values (or null)
...fits your use case
public static class Request {
// ...
}
As noted in comments, in versions below 2.x the syntax for this annotation is:
@JsonSerialize(include = JsonSerialize.Inclusion.NON_NULL) // or JsonSerialize.Inclusion.NON_EMPTY
The other option is to configure the ObjectMapper direc...