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Produce a random number in a range using C#
...need to put something for it to start with...... the Random object simply does lots of math on the value you give, and does so in a way that each call of Next() on the same Random object will result in a value quite random to the previous call. To make the result more random across different Rando...
Why all the Active Record hate? [closed]
...rates associated Company objects so you can do people.first.company and it doesn't need to hit the database because the data is already present.
@pix0r
The inherent problem with Active Record is that database queries are automatically generated and executed to populate objects and modify da...
Why is SCTP not much used/known
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This does not answer the question at all. James' response contains more information than the answer actually does.
– Ken Sharp
Oct 30 '15 at 6:22
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Should Jquery code go in header or footer?
...to use deferred scripts.
The DEFER attribute indicates that the
script does not contain
document.write, and is a clue to
browsers that they can continue
rendering. Unfortunately, Firefox
doesn't support the DEFER attribute.
In Internet Explorer, the script may
be deferred, but not as...
Default initialization of std::array?
... { std::array<int,12> dozen; X( ) :dozen( ) {} Does that get me twelve zeros?
– gerardw
Oct 9 '13 at 17:10
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Does Redis persist data?
I understand that Redis serves all data from memory, but does it persist as well across server reboot so that when the server reboots it reads into memory all the data from disk. Or is it always a blank store which is only to store data while apps are running with no persistence?
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Does a UNIQUE constraint automatically create an INDEX on the field(s)?
...rick. When the constraint is defined using user_id first and then email it doesn't show up in EXPLAIN. Are you aware of this?
– gremo
Mar 19 '12 at 3:14
10
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Does JavaScript have a method like “range()” to generate a range within the supplied bounds?
In PHP, you can do...
62 Answers
62
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How to delete shared preferences data from App in Android
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Clearing the preferences file does not appear to actually delete it. In my own tests by watching the "Data" usage listed in the App Info panel, creating a new SharedPreference file adds 4KB to this value but using editor.clear().commit() does not reduce t...
Parse string to DateTime in C#
...e.Parse() will try figure out the format of the given date, and it usually does a good job. If you can guarantee dates will always be in a given format then you can use ParseExact():
string s = "2011-03-21 13:26";
DateTime dt =
DateTime.ParseExact(s, "yyyy-MM-dd HH:mm", CultureInfo.InvariantC...