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Java String array: is there a size of method?
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Yes, .length (property-like, not a method):
String[] array = new String[10];
int size = array.length;
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MySQL Workbench: How to keep the connection alive
Error Code: 2013. Lost connection to MySQL server during query
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Simplest way to serve static data from outside the application server in a Java web application
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A type for Date only in C# - why is there no Date type?
...g-forward daylight saving time transition moves the clock from 11:59:59 to 01:00:00.
A date-time always refers to a specific time within the day, while a date-only may refer to the beginning of the day, the end of the day, or the entire range of the day.
Attaching a time to a date can lead to the d...
How do I catch an Ajax query post error?
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Since jQuery 1.5 you can use the deferred objects mechanism:
$.post('some.php', {name: 'John'})...
SQL command to display history of queries
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edited Jun 10 '14 at 6:36
Baby Groot
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Rails: select unique values from a column
...rails 5+
Model.distinct.pluck(:rating)
Update
Apparently, as of rails 5.0.0.1, it works only on "top level" queries, like above. Doesn't work on collection proxies ("has_many" relations, for example).
Address.distinct.pluck(:city) # => ['Moscow']
user.addresses.distinct.pluck(:city) # => [...
How to use the CancellationToken property?
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edited Feb 19 at 14:08
Eliahu Aaron
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Test if object implements interface
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580
if (object is IBlah)
or
IBlah myTest = originalObject as IBlah
if (myTest != null)
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Comet and jQuery [closed]
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answered Sep 26 '08 at 0:17
Morgan ARR AllenMorgan ARR Allen
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