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Count number of days between two dates
...haviour remains the same in all recent versions of Ruby and ActiveSupport, include 2.0 and 4.1.0 respectively. Time objects do return seconds though.
– Andrew France
Apr 23 '14 at 23:04
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GDB missing in OS X v10.9 (Mavericks)
...pile from source as well on Mavericks, after setting CFLAGS="-I /usr/local/include" so it picked up libintl.h. Don't forget to sign the code though, or gdb won't work. See ntraft.com/installing-gdb-on-os-x-mavericks for info on this. The end result of all this was successful debugging in NetBeans (m...
What is a stack trace, and how can I use it to debug my application errors?
...that a is never null at that time. You could, for example, initialise a or include a check like this one:
if (a!=null) {
a.toString();
}
This way, the offending line is not executed if a==null. Same goes for the other examples.
Sometimes you can't make sure that you don't get an exception. F...
Are there any disadvantages to always using nvarchar(MAX)?
..., is not true, the value gets pushed out of row based on may more factors, including sp_tableoptions: msdn.microsoft.com/en-us/library/ms173530.aspx. VARCHAR(255) types can also b pushed out of row, the 'overhead' mentioned may be exactly the same for MAX and 255. It compares MAX types with TEXT typ...
How can I recall the argument of the previous bash command?
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@RNA, I just tried it again to make sure I didn't include a typo, could you provide a little more detail (eg. ubuntu command line, cygwin for windows? error message? previous line?)
– Robert Gowland
Feb 14 '14 at 14:59
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How to get ASCII value of string in C#
...') for characters that are not in the ASCII character set. Other options—including throwing an exception—are available in the Encoding class. And, of course, other character encodings—especially UTF-8—are available, too; One should question whether it is ASCII that is actually wanted.
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What is Ember RunLoop and how does it work?
...le change made by the chunk of code passed to the Ember.run function. This includes propagating the values of bound properties, rendering view changes to the DOM, etc etc. The order in which these actions (binding, rendering DOM elements, etc) are performed is determined by the Ember.run.queues arra...
Change navbar color in Twitter Bootstrap
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@Adrian : you should include the CSS file with these customizations after you include bootstrap's own css. Other reason can be for not working is if you use bootstrap-theme.css to give your site Boostrap 2.x like gradient look and feel
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Is delete this allowed?
...[class.dtor]/13):
At the point of definition of a virtual destructor (including an implicit definition (15.8)), the non-array deallocation function is determined as if for the expression delete this appearing in a non-virtual destructor of the destructor’s class (see 8.3.5).
That tends to su...
Deleting all files from a folder using PHP?
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If you want to delete everything from folder (including subfolders) use this combination of array_map, unlink and glob:
array_map( 'unlink', array_filter((array) glob("path/to/temp/*") ) );
This call can also handle empty directories ( thanks for the tip, @mojuba!)
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