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PostgreSQL - fetch the row which has the Max value for a column
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You have an error. You need to write ORDER BY tree_size.size DESC. Also, for author's task the code will look like this: SELECT usr_id, (array_agg(time_stamp ORDER BY time_stamp DESC))[1] AS timestamp, (array_agg(lives_remaining ORD...
How can I get the list of files in a directory using C or C++?
..._name);
}
closedir (dir);
} else {
/* could not open directory */
perror ("");
return EXIT_FAILURE;
}
It is just a small header file and does most of the simple stuff you need without using a big template-based approach like boost(no offence, I like boost!).
The author of the windows co...
What is the difference between NULL, '\0' and 0?
...nd the compiler has to produce at least one diagnostic message (warning or error) according to the C Standard.
Note that what is a null pointer in the C language. It does not matter on the underlying architecture. If the underlying architecture has a null pointer value defined as address 0xDEADBEEF...
IllegalStateException: Can not perform this action after onSaveInstanceState with ViewPager
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There are many related problems with a similar error message. Check the second line of this particular stack trace. This exception is specifically related to the call to FragmentManagerImpl.popBackStackImmediate.
This method call, like popBackStack, will always fail with...
How to get a DOM Element from a JQuery Selector
...sing DOM properties? Shouldn't it be better to have consistent code that's error-proof against possible TypeErrors? A few years ago I used to be an elitist ECMAScripter and avoided frameworks but the more I learned about inconsistencies I ended up relying more. Browser engines are only getting faste...
How do I undo the most recent local commits in Git?
...removal | [--update | -u]] [--intent-to-add | -N] [--refresh] [--ignore-errors] [--ignore-missing] [--chmod=(+|-)x] [--] [<pathspec>…]
– Ashraf.Shk786
Feb 20 '17 at 17:34
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Better way of getting time in milliseconds in javascript?
... according to the delta frame time and you don't have some rounding number error, I bet for the garbage collector (GC).
If there is a lot of created temporary object in your loop, garbage collection has to lock the thread to make some cleanup and memory re-organization.
With Chrome you can see how...
How do I get started with Node.js [closed]
...Hint is a code-checking tool that'll save you loads of time finding stupid errors. Find a plugin for your text editor that will automatically run it on your code.
Unit Testing:
Mocha is a popular test framework.
Vows is a fantastic take on asynchronous testing, albeit somewhat stale.
Expresso is...
Visual Studio keyboard shortcut to automatically add the needed 'using' statement
...ntrating on making the editor smarter, keyboard shortcuts easier, and code/error checking and evaluation better - the days of a dumb editor leaving you to google a class to find out in which library it resides are gone (or should be in any case) for most of us.
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Log4Net, how to add a custom field to my logging
...odBase.GetCurrentMethod().DeclaringType);
public static string LogError(string message, Exception exception = null)
{
var logWithErrCode = GetLogWithErrorCode(message);
Logger.Error(logWithErrCode, exception);
return logWithErrCode.ExceptionCode;
...