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What's this =! operator? [duplicate]
...ver
}
setting a to the logical inverse of b, and testing whether the result is true (or, equivalently, whether b was false).
Or it might be a mistyping of a != b.
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How can I add timestamp to logs using Node.js library Winston?
...two ways I was able to do this.
When you include Winston, it usually defaults to adding a Console transport. In order to get timestamps to work in this default case, I needed to either:
Remove the console transport and add again with the timestamp option.
Create your own Logger object with the t...
Hidden features of C
...to the compiler (common in the Linux kernel)
#define likely(x) __builtin_expect((x),1)
#define unlikely(x) __builtin_expect((x),0)
see: http://kerneltrap.org/node/4705
What I like about this is that it also adds some expressiveness to some functions.
void foo(int arg)
{
if (unlik...
Regarding 'main(int argc, char *argv[])' [duplicate]
...and line parameters. Inside main( int argc, char * argv[]), this would result in
Argument Count, argc = 7
since there are 7 arguments (counting the program), and
Argument Vector, argv[] = { "mysort", "2", "8", "9", "1", "4", "5" };
Following is a complete example.
$ cat mysort.c
#include &l...
Multiple types were found that match the controller named 'Home'
...o in the main route definition in Global.asax:
routes.MapRoute(
"Default",
"{controller}/{action}/{id}",
new { controller = "Home", action = "Index", id = UrlParameter.Optional },
new[] { "AppName.Controllers" }
);
and in your ~/Areas/Admin/AdminAreaRegistration.cs:
context.MapRo...
Task vs Thread differences [duplicate]
...f "where to run some code" though - it's really just "the promise of a result in the future". So as some different examples:
Task.Delay doesn't need any actual CPU time; it's just like setting a timer to go off in the future
A task returned by WebClient.DownloadStringTaskAsync won't take much CPU ...
How to change the Push and Pop animations in a navigation based app
...o far.. And for the beginners, don't forget to include QuartCore (#import <QuartzCore/QuartzCore.h>)
– nomann
Apr 12 '12 at 10:15
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Where is the “Fold” LINQ Extension Method?
...
@Hi-Angel, no, the example is in fact a fold. The <double> type parameter is just automatically inferred by the compiler and thus not necessary.
– kdbanman
Nov 29 '15 at 5:01
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Swift Programming: getter/setter in stored property
...intln("Added \(totalSteps - oldValue) steps")
}
}
}
The default parameter names are newValue for willSet and oldValue for didSet, or you can name them yourself as in willSet(newTotalSteps).
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Unable to hide welcome screen in Emacs
...
(setq inhibit-splash-screen t)
(setq inhibit-startup-message t)
Alternatively you could:
alias emacs='emacs --no-splash'
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