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What's the difference between Perl's backticks, system, and exec?
...ere you want to fetch STDOUT, STDERR or the return code, you can use well known standard modules like IPC::Open2 and IPC::Open3.
Example:
use IPC::Open2;
my $pid = open2(\*CHLD_OUT, \*CHLD_IN, 'some', 'cmd', 'and', 'args');
waitpid( $pid, 0 );
my $child_exit_status = $? >> 8;
Finally, IPC:...
Way to go from recursion to iteration
...s still depth-first search. But if you change the whole thing into a queue now you are doing breadth-first rather than depth-first traversal.
– pete
Oct 31 '13 at 20:33
1
...
What is the use of static constructors?
...ment;
static string urlFragment = "foo/bar";
}
Your fullUrl value is now just "http://www.example.com/" since urlFragment hadn't been initialized at the time fullUrl was being set. Not good. So, you add a static constructor to take care of the initialization:
class ScopeMonitor
{
static...
Difference between android.app.Fragment and android.support.v4.app.Fragment
... use android.app.Fragment.
Edit: the OS-contained android.app.Fragment is now deprecated (as of API level 28), and everyone should move to using the support library implementations.
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What is the difference between the 'COPY' and 'ADD' commands in a Dockerfile?
....gz DOES NOT EXTRACT the archive to the filesystem (I double checked right now to be sure and it's confirmed)
– Cecile
Oct 19 '18 at 15:19
50
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CSS transition effect makes image blurry / moves image 1px, in Chrome?
... (counter-)clockwise.
Translate Z-axis to always have a zero value.
Chrome now handles backface-visibility and transform without the -webkit- prefix. I currently don't know how this affects other browsers rendering (FF, IE), so use the non-prefixed versions with caution.
...
Android studio Gradle build speed up
...are working on it. Like I posted in this answer the fastest solution right now is to use gradle from the command line and you should switch to binary libs for all modules you do not develop. On g+ there is a discussion with the developers about it.
...
How do I do base64 encoding on iOS?
...s) of data
objRawData += 3;
intLength -= 3;
}
// now deal with the tail end of things
if (intLength != 0) {
*objPointer++ = _base64EncodingTable[objRawData[0] >> 2];
if (intLength > 1) {
*objPointer++ = _base64EncodingTable[((objRawD...
multi-step registration process issues in asp.net mvc (split viewmodels, single model)
... {
return View(model);
}
return View("Step2", model);
}
Now inside the step 2 view you could use the Html.Serialize helper from MVC futures in order to serialize step 1 into a hidden field inside the form (sort of a ViewState if you wish):
@using (Html.BeginForm("Step2", "Wizard"...
Uninstall ReSharper 4.5
I have ReSharper 4.5 in Visual Studio 2008. Now I want to install ReSharper 5, but I can't do it before I uninstall ReSharper 4.5.
...