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How to find whether or not a variable is empty in Bash
... JayJay
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Where does R store packages?
...ne .libPaths=("C:/R/library") to my Rprofile.site file. I launch R 2.13.1 64 bit and get this error: Error: cannot change value of locked binding for '.libPaths' I am using Windows 7.
– Fred
Jul 15 '11 at 15:18
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How to find path of active app.config file?
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Try this
AppDomain.CurrentDomain.SetupInformation.ConfigurationFile
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Cast int to varchar
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Mad Physicist
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answered Sep 12 '15 at 18:08
nancynancy...
When should I use mmap for file access?
...r sequential reads, mmap() will give you no measurable advantage - this is based on empirical and theoretical evidence. If you don't believe me, write your own test.
– Tim Cooper
Dec 9 '08 at 4:40
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Concurrent HashSet in .NET Framework?
...Dictionary or locking over a HashSet I created an actual ConcurrentHashSet based on ConcurrentDictionary.
This implementation supports basic operations per item without HashSet's set operations as they make less sense in concurrent scenarios IMO:
var concurrentHashSet = new ConcurrentHashSet<s...
Best way to unselect a in jQuery?
...('selectedIndex', '-1');
This is explained in the post linked by flyfishr64. If you look at it, you will see how there are 2 cases - multi / non-multi. There is nothing stopping you chaning both for a complete solution:
$("#selectID").attr('selectedIndex', '-1').find("option:selected").removeAt...
SPA best practices for authentication and session management
...quest.
This, of course, absolutely requires SSL, because you're passing a Base64 (reversibly) encoded name and password with every request. Anybody listening on the line could extract username and password trivially. Most of the "Basic Auth is insecure" arguments come from a place of "Basic Auth ov...
Convert timestamp to date in MySQL query
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Convert timestamp to date in MYSQL
Make the table with an integer timestamp:
mysql> create...
Matrix Transpose in Python
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>>> theArray = [['a','b','c'],['d','e','f'],['g','h','i']]
>>> [list(i) for i...