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How do I set up a basic Ruby project?
...
To get a good start, you can use the bundle gem command and rspec --init.
~/code $ bundle gem my_lib
create my_lib/Gemfile
create my_lib/Rakefile
create my_lib/LICENSE.txt
create my_lib/README.md
create ...
What is the significance of 1/1/1753 in SQL Server?
...rs until much later, 1918 in Russia. Indeed the October Revolution of 1917 started on 7 November under the Gregorian calendar.
Both datetime and the new datetime2 datatype mentioned in Joe's answer do not attempt to account for these local differences and simply use the Gregorian Calendar.
So with...
How to move a model between two Django apps (Django 1.7)
So about a year ago I started a project and like all new developers I didn't really focus too much on the structure, however now I am further along with Django it has started to appear that my project layout mainly my models are horrible in structure.
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Conveniently Declaring Compile-Time Strings in C++
...added a constexpr operator==. Sorry. Scott's presentation should get you started on how to do this. It is much easier in C++14 than in C++11. I wouldn't even bother trying in C++11. See Scott's latest constexpr talks here: youtube.com/user/CppCon
– Howard Hinnant
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In Windows Azure: What are web role, worker role and VM role?
...plit them into multiple roles for different scalability needs.
For a good start, take a look at the Platform Training Kit and start walking through the exercises.
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How to implement a ViewPager with different Fragments / Layouts
When I start an activity which implements viewpager, the viewpager created various fragments. I want to use different layouts for each fragment, but the problem is that viewpager shows only two layouts at the max (second layout on all of the remaining fragments after 1).
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How do I obtain a Query Execution Plan in SQL Server?
...t information. Example code for this is below.
DECLARE @TraceID INT
EXEC StartCapture @@SPID, @TraceID OUTPUT
EXEC sp_help 'sys.objects' /*<-- Call your stored proc of interest here.*/
EXEC StopCapture @TraceID
Example StartCapture Definition
CREATE PROCEDURE StartCapture
@Spid INT,
@TraceID...
How do I replace NA values with zeros in an R dataframe?
...), ~replace(., is.na(.), 0))
or in place of contains(), try ends_with(),starts_with()
pattern match mutate_at(vars(matches("\\d{2}")), ~replace(., is.na(.), 0))
Conditionally:
(change just single type and leave other types alone.)
integers mutate_if(is.integer, ~replace(., is.na(.), 0))
nu...
What's the difference between returning void and returning a Task?
... some asynchronous work throws an exception. Who catches it? The code that started the asynchronous task is not on the stack anymore -- it might not even be on the same thread -- and exceptions assume that all the catch/finally blocks are on the stack. So what do you do? We store the exception infor...
Install dependencies globally and locally using package.json
...};
doWhile();
});
/*--------------------------------------------*/
/* Start of asynchronous package installation */
/* loop. Do until all packages installed. */
/*--------------------------------------------*/
var doWhile = function()
{
if (name = names.shift())
doWhile0();
}
var...