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How do you round a float to two decimal places in jruby
...rency, but be aware that using #round(precision) will not work as intended if you are trying to do this (3.round(2) #=> 3.0, not 3.00). To get this, check out the answer by Theo below.
– jaredsmith
May 19 '14 at 21:48
...
How do I convert a decimal to an int in C#?
... Be careful, because Convert.ToInt32 and Decimal.ToInt32 behave differently. From MSDN: Decimal.ToInt32 - The return value is the integral part of the decimal value; fractional digits are truncated. Convert.ToInt32 - Return value rounded to the nearest 32-bit signed integer. If value is ha...
How to keep onItemSelected from firing off on a newly instantiated Spinner?
...ected your solution to work -- I though the selection event would not fire if you set the adapter before setting up the listener.
That being said, a simple boolean flag would allow you to detect the rogue first selection event and ignore it.
...
Capture characters from standard input without waiting for enter to be pressed
... manpage). See Curses at Wikipedia.
I would recommend you to use curses if you aim for cross platform compatibility. That said, I'm sure there are functions that you can use to switch off line buffering (I believe that's called "raw mode", as opposed to "cooked mode" - look into man stty). Curses...
Git pre-push hooks
I would like to run a unit-tests before every git push and if tests fails, cancel the push, but I can't even find pre-push hook, there is pre-commit and pre-rebase only.
...
Detect iPad users using jQuery?
Is there a way to detect if the current user is using an iPad using jQuery/JavaScript?
4 Answers
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python: How do I know what type of exception occurred?
...y, it's so that you don't hide:
the fact that an error occurred
the specifics of the error that occurred (error hiding antipattern)
So as long as you take care to do none of those things, it's OK to catch the generic exception. For instance, you could provide information about the exception to ...
Practical usage of setjmp and longjmp in C
...ense only in the top level function.
It would be very tedious and awkward if all the functions in between had to return normally and evaluate return values or a global error variable to determine that further processing doesn't make sense or even would be bad.
That's a situation where setjmp/longj...
Declaring variables inside or outside of a loop
...tically that str absolutely ought to be declared within the while loop. No ifs, no ands, no buts.
The only case where this rule might be violated is if for some reason it is of vital importance that every clock cycle must be squeezed out of the code, in which case you might want to consider instant...
How to convert an Stream into a byte[] in C#? [duplicate]
...System.IO.Stream stream)
{
long originalPosition = 0;
if(stream.CanSeek)
{
originalPosition = stream.Position;
stream.Position = 0;
}
try
{
byte[] readBuffer = new byte[4096];
int totalBytesRead ...