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Make sure only a single instance of a program is running
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The following code should do the job, it is cross-platform and runs on Python 2.4-3.2. I tested it on Windows, OS X and Linux.
from tendo import singleton
me = singleton.SingleInstance() # will sys.exit(-1) if other instance is running
The latest code version is available singleto...
How to “warm-up” Entity Framework? When does it get “cold”?
... Entity Framework at anytime?
You can go for a mix of pregenerated views and static compiled queries.
Static CompiledQuerys are good because they're quick and easy to write and help increase performance. However with EF5 it isn't necessary to compile all your queries since EF will auto-compile qu...
How can I convert a string to boolean in JavaScript?
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I follow Crockford's advice and use === and !== whenever it makes sense, which is almost always.
– guinaps
Feb 10 '11 at 15:37
56
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Running multiple async tasks and waiting for them all to complete
I need to run multiple async tasks in a console application, and wait for them all to complete before further processing.
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in a “using” block is a SqlConnection closed on return or exception?
...loyeeID();
try
{
connection.Open();
SqlCommand command = new SqlCommand("UpdateEmployeeTable", connection);
command.CommandType = CommandType.StoredProcedure;
command.Parameters.Add(new SqlParameter("@EmployeeID", employeeID));
command.CommandT...
Why can't R's ifelse statements return vectors?
I've found R's ifelse statements to be pretty handy from time to time. For example:
9 Answers
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How to create a memory leak in Java?
I just had an interview, and I was asked to create a memory leak with Java.
Needless to say, I felt pretty dumb having no clue on how to even start creating one.
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How to get folder path for ClickOnce application
...n just run the app, open the task manager (CTRL-SHIFT-ESC), select the app and right-click|Open file location.
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Pseudo-terminal will not be allocated because stdin is not a terminal
...g to write a shell script that creates some directories on a remote server and then uses scp to copy files from my local machine onto the remote. Here's what I have so far:
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Simplest way to read json from a URL in java
This might be a dumb question but what is the simplest way to read and parse JSON from URL in Java ?
11 Answers
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