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Replace selector images programmatically
... = new StateListDrawable();
states.addState(new int[] {android.R.attr.state_pressed},
getResources().getDrawable(R.drawable.pressed));
states.addState(new int[] {android.R.attr.state_focused},
getResources().getDrawable(R.drawable.focused));
states.addState(new int[] { },
getResources()....
What are the differences between type() and isinstance()?
...ne is not better; they are for different things.
– EL_DON
Apr 30 '17 at 2:30
Please can you tell me - why have you use...
How to make custom error pages work in ASP.NET MVC 4
...mething like this:
@model System.Web.Mvc.HandleErrorInfo
@{
Layout = "_Layout.cshtml";
ViewBag.Title = "Error";
}
<div class="list-header clearfix">
<span>Error</span>
</div>
<div class="list-sfs-holder">
<div class="alert alert-error">
An...
What specifically are wall-clock-time, user-cpu-time, and system-cpu-time in UNIX?
...en elapsed but calculalting the CPU time using the formula CPUtime = #clock_cycles / clock_rate cannot be the same as calculating the elapsed time. Do you know if I can get the elapsed time from the CPU time?
– Bionix1441
Dec 6 '17 at 11:43
...
How to play with Control.Monad.Writer in haskell?
..." ++ show (a `mod` b))
gcd' b (a `mod` b)
main :: IO()
main = mapM_ putStrLn $ snd $ W.runWriter (gcd' 8 3)
Code is currently runable here
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How to work around the lack of transactions in MongoDB?
...- they'll be multi-statement, with similar semantics and syntax (like start_transaction and commit_transaction). Importantly, the changes to MongoDB that enable transactions do not impact performance for workloads that do not require them.
For more details see here.
Having distributed transaction...
Is there any difference between the `:key => “value”` and `key: “value”` hash notations?
...Hash keys are "simple" symbols (more or less something that matches /\A[a-z_]\w*\z/i, AFAIK the parser uses its label pattern for these keys).
The :$in style symbols show up a fair bit when using MongoDB so you'll end up mixing Hash styles if you use MongoDB. And, if you ever work with specific key...
Split comma-separated strings in a column into separate rows
...brary(magrittr)
Define function for benchmark runs of problem size n
run_mb <- function(n) {
# compute number of benchmark runs depending on problem size `n`
mb_times <- scales::squish(10000L / n , c(3L, 100L))
cat(n, " ", mb_times, "\n")
# create data
DF <- data.frame(directo...
Path of assets in CSS files in Symfony 2
... 14 combinations on the same twig, and this route was launched from
"/app_dev.php/"
"/app.php/"
and "/"
thus giving 14 x 3 = 42 tests.
Additionally, all this has been tested working in a subdirectory, so there is no way to fool by giving absolute URLs because they would simply not work.
The te...
Is there a way to check if a file is in use?
...tem.Runtime.InteropServices;
internal static class Helper
{
const int ERROR_SHARING_VIOLATION = 32;
const int ERROR_LOCK_VIOLATION = 33;
private static bool IsFileLocked(Exception exception)
{
int errorCode = Marshal.GetHRForException(exception) & ((1 << 16) - 1);
return errorCode...