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'and' (boolean) vs '&' (bitwise) - Why difference in behavior with lists vs numpy arrays?
...d b is almost the same as b if a else a, except a is evaluated only once.
Now sit for a few minutes with a pen and paper, and convince yourself that when {a,b} is a subset of {True,False}, it works exactly as you would expect of Boolean operators. But I hope I have convinced you it is much more gen...
Running a cron every 30 seconds
...to enable the timer (not the service though) by running systemctl enable --now helloworld.timer (the --now flag also starts the timer immediately, otherwise, it will only start after the next boot, or user login).
The [Timer] section fields used here are as follows:
OnBootSec - start the service ...
Vim: Delete buffer without losing the split window
...ch is so simple, not requiring and entire script to run it. In my VIMRC, I now have this mapped for CTRL+C: nnoremap <C-c> :bp\|bd #<CR>
– Cloud
Jul 12 '13 at 17:40
...
Why does the C# compiler not fault code where a static method calls an instance method?
...w answer (and this entire question) has mostly only historical interest by now!
(Pre C# 7.3:)
For some reason, overload resolution always finds the best match before checking for static versus non-static. Please try this code with all static types:
class SillyStuff
{
static void SameName(obje...
Error when testing on iOS simulator: Couldn't register with the bootstrap server
...ed debugging there, made some changes to the code and built the app again. Now when I run the application, I get this error in the console
...
How do I perform an insert and return inserted identity with Dapper?
... sure this works automatically in future dapper builds. Another option for now is select cast(SCOPE_IDENTITY() as int) - again, a bit ugly. I will fix this.
– Marc Gravell♦
Nov 25 '11 at 14:26
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When to use volatile with multi threading?
...e semantics on volatile variables.
[Update for C++11]
The C++11 Standard now does acknowledge multithreading directly in the memory model and the lanuage, and it provides library facilities to deal with it in a platform-independant way. However the semantics of volatile still have not changed. v...
Test iOS app on device without apple developer program or jailbreak
...lso, you must do this for every .sdk you want to be able to run on device.
Now, in your project settings, you can change Code Signing Identity to Don't Code Sign.
Your app should now build and install on your device successfully.
UPDATE:
There are some issues with iOS 5.1 SDK that this method may no...
Set focus on TextBox in WPF from view model
... uie.Focus(); // Don't care about false values.
}
}
}
Now in your View (in XAML) you can bind this property to your ViewModel:
<TextBox local:FocusExtension.IsFocused="{Binding IsUserNameFocused}" />
Hope this helps :). If it doesn't refer to the answer #2.
Cheers.
...
What is the standard naming convention for html/css ids and classes?
...convention (if any).
Update 2012
I've changed how I program over time. I now use camel case (thisIsASelector) instead of hyphens now; I find the latter rather ugly. Use whatever you prefer, which may easily change over time.
Update 2013
It looks like I like to mix things up yearly... After switc...