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How to convert an NSTimeInterval (seconds) into minutes
... done with this, it wraps to the nearest second rather than rounding up or down. Your mileage may vary.
– David Doyle
Apr 9 '13 at 9:55
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Measuring elapsed time with the Time module
...lication (or Windows machine) is long-running.
Resolution starts breaking down on perf_counter() after around 100 days. So for example after a year of uptime, the shortest interval (greater than 0) it can measure will be bigger than when it started.
Update for Python 3.8
time.clock is now gone....
Rank items in an array using Python/NumPy, without sorting array twice
... @WarrenWeckesser: Actually, I'm wrong, this method is hands-down better. Both methods are far faster than the scipy.stats method, too. Results: gist.github.com/naught101/14042d91a2d0f18a6ae4
– naught101
Aug 18 '15 at 3:03
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Salting Your Password: Best Practices?
...swords far predates rainbow tables. Salts were added specifically to slow down dictionary attacks, by preventing attackers from hashing a password once then comparing it against all users.
– Glenn Maynard
Mar 5 '12 at 16:20
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Hidden Features of Java
...es method and obtain a sorted thread safe Set of Strings without having to down cast to the ConcurrentSkipListSet.
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edited Aug 29 '08 at 19:44
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Django auto_now and auto_now_add
...relying on these field arguments is two-fold:
The aforementioned ups and downs with their reliability. These arguments are heavily reliant on the way each type of database that Django knows how to interact with treats a date/time stamp field, and seems to break and/or change between every release...
How can I print the contents of a hash in Perl?
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Sorry, down vote from me for stuff that hijacks comments for actual functionality. A maintenance programmer could spend all day trying to work out why code like that was printing out unexpected stuff.
– MikeKul...
The object 'DF__*' is dependent on column '*' - Changing int to double
...bo].[MyTable] DROP CONSTRAINT [' + @var0 + ']')");
}
public override void Down()
{
AlterColumn("dbo.MyTable", "Rating", c => c.Int(nullable: false));
}
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Single huge .css file vs. multiple smaller specific .css files? [closed]
...ting it out causes extra http requests which could potentially slow things down.
My opinion would be one of two things.
1) If you know that your CSS will NEVER change once you've built it, I'd build multiple CSS files in the development stage (for readability), and then manually combine them befor...
How can I change my default database in SQL Server without using MS SQL Server Management Studio?
...viding an answer. You might want to take a look at the features of the Markdown editor, so you can format code blocks, lists, etc.: stackoverflow.com/editing-help. I've edited your answer to improve the formatting for you.
– Paul Turner
Feb 19 '13 at 12:57
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