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How do I make a textbox that only accepts numbers?
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What character to use to put an item at the end of an alphabetic list?
...ur folder at the end of the list without having to resort to using the "z" combo: U+E83A: Private Use. In fact, I believe any of the Private Use characters will work. () Just copy and paste the character between the brackets.
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Using vagrant to run virtual machines with desktop environment
My company's development environment is based on virtual machines, running on VirtualBox. We would like to move one step further, and use the capabilities of Vagrant to have the description of the machine in a text file and then be able to "raise" that machine based on that text file. Combined to pu...
Splitting templated C++ classes into .hpp/.cpp files--is it possible?
I am getting errors trying to compile a C++ template class which is split between a .hpp and .cpp file:
16 Answers
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How to print a date in a regular format?
...print can be get using the str() function. It is most of the time the most common human readable format and is used to ease display. So str(datetime.datetime(2008, 11, 22, 19, 53, 42)) gives you '2008-11-22 19:53:42'.
The alternative representation that is used to represent the object nature (as a ...
Calculate relative time in C#
...our code is nice but could be clearer with constants (as suggested in Code Complete).
const int SECOND = 1;
const int MINUTE = 60 * SECOND;
const int HOUR = 60 * MINUTE;
const int DAY = 24 * HOUR;
const int MONTH = 30 * DAY;
var ts = new TimeSpan(DateTime.UtcNow.Ticks - yourDate.Ticks);
double del...
How to easily initialize a list of Tuples?
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Batch file to delete files older than N days
... with hundreds of lines of code, and others that required installing extra command line utilities to accomplish the task.
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No newline at end of file
...torically, it was a decision made by the C language standard stackoverflow.com/a/729725/233098 Practically, because many Unix tools require or expect it for proper display stackoverflow.com/a/729795/233098. Philosophically, because each line in a text file terminates with an "end-of-line" character-...
.toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])?
... blog post Arrays of Wisdom of the Ancients. To summarize: the JVM and JIT compiler contains several optimizations that enable it to cheaply create and initialize a new correctly sized array, and those optimizations can not be used if you create the array yourself.
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