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Should I Dispose() DataSet and DataTable?
DataSet and DataTable both implement IDisposable, so, by conventional best practices, I should call their Dispose() methods.
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An efficient way to transpose a file in Bash
...$ ./shell.sh
0 3 6 9
1 4 7 10
2 5 8 11
Performance against Perl solution by Jonathan on a 10000 lines file
$ head -5 file
1 0 1 2
2 3 4 5
3 6 7 8
4 9 10 11
1 0 1 2
$ wc -l < file
10000
$ time perl test.pl file >/dev/null
real 0m0.480s
user 0m0.442s
sys 0m0.026s
$ time awk -f ...
Where is nodejs log file?
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There is no log file. Each node.js "app" is a separate entity. By default it will log errors to STDERR and output to STDOUT. You can change that when you run it from your shell to log to a file instead.
node my_app.js > my_app_log.log 2> my_app_err.log
Alternatively (recommended...
Loader lock error
I am building on C++ dll, by writing code in C#.
9 Answers
9
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Are there constants in JavaScript?
... Rhino or Node.js) you can use the const keyword. It's currently supported by all modern browsers except for IE.
– Husky
Aug 1 '11 at 19:16
17
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How to empty/destroy a session in rails?
...er.
reset_session
Here's the documentation on this method: http://api.rubyonrails.org/classes/ActionController/Base.html#M000668
Resets the session by clearing out all
the objects stored within and
initializing a new session object.
Good luck!
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How can I change the color of pagination dots of UIPageControl?
...or UIPageControl because that one only supports white dots.
//
// Created by Morten Heiberg <morten@heiberg.net> on November 1, 2010.
//
#import <UIKit/UIKit.h>
@protocol PageControlDelegate;
@interface PageControl : UIView
{
@private
NSInteger _currentPage;
NSInteger _numbe...
Redis: Show database size/size for keys
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Is serialized length the size of the entire object, in bytes?
– raffian
Aug 17 '12 at 0:38
18
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Entity Framework code first unique column
... an index.
The reason is because of this:
SQL Server retains the 900-byte limit for the maximum total size of all index key columns."
(from: http://msdn.microsoft.com/en-us/library/ms191241.aspx )
You can solve this by setting a maximum string length on your model:
[StringLength(450)]
Yo...
How can I get the concatenation of two lists in Python without modifying either one? [duplicate]
...function name, not an operator (Yes, I know that operators are implemented by hidden functions.)
– Ryan C. Thompson
Dec 3 '10 at 19:07
34
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