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Is there a generic constructor with parameter constraint in C#?
...te.
If the constructor is missing, an exception needs to be handled at run-time rather than getting an error at compile time.
// public static object CreateInstance(Type type, params object[] args);
// Example 1
T t = (T)Activator.CreateInstance(typeof(T));
// Example 2
T t = (T)Activator.CreateIn...
Determine Whether Two Date Ranges Overlap
... and end (with the semantic that "null start" = "From the beginning of the time" and "null end" = "To the end of the time") like that: (startA === null || endB === null || startA <= endB) && (endA === null || startB === null || endA >= startB)
– Kevin Robatel
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Read an Excel file directly from a R script
...e R wiki. Short answer: read.xls from the gdata package works most of the time (although you need to have Perl installed on your system -- usually already true on MacOS and Linux, but takes an extra step on Windows, i.e. see http://strawberryperl.com/). There are various caveats, and alternatives, ...
Remove duplicate dict in list in Python
...hat check for every element in your dictionary so this this code is O(n^2) time complexity
– Boris
May 14 at 18:37
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Run an untrusted C program in a sandbox in Linux that prevents it from opening files, forking, etc.?
... has about 1% performance overhead for CPU-intensive jobs, but it may be 6 times slower for I/O-intensive jobs.
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Is there a way of making strings file-path safe in c#?
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This question has been asked many times before and, as pointed out many times before, IO.Path.GetInvalidFileNameChars is not adequate.
First, there are many names like PRN and CON that are reserved and not allowed for filenames. There are other names not all...
What is a practical use for a closure in JavaScript?
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Suppose, you want to count the number of times user clicked a button on a webpage.
For this, you are triggering a function on onclick event of button to update the count of the variable
<button onclick="updateClickCount()">click me</button>
Now th...
How can I make a JUnit Test wait?
I have a JUnit test that I want to have wait for a period of time, synchronously. My JUnit test looks like this:
6 Answers
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Most efficient way of making an if-elif-elif-else statement when the else is done the most?
I've got a in if-elif-elif-else statement in which 99% of the time, the else statement is executed:
5 Answers
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Why does Python code run faster in a function?
This piece of code in Python runs in (Note: The timing is done with the time function in BASH in Linux.)
3 Answers
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