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Can I set variables to undefined or pass undefined as an argument?
...n the original Netscape version of JavaScript, but is available everywhere now:
if ('prop' in o)
...
In summary, undefined is a JavaScript-specific mess, which confuses everyone. Apart from optional function arguments, where JS has no other more elegant mechanism, undefined should be avoided...
Disable Visual Studio devenv solution save dialog
... A note to those coming from the msdn link in this answer (that now links to this stackoverflow post) - this answer worked for me without having to do any of the registry editing mentioned - just make this one change and it will fix the problem.
– Adam Knights
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Changing all files' extensions in a folder with one command on Windows
...
man ren? The question was about Windows/cmd. Do those now provide man pages? What is ren-1.0 and how can we view its man page in context?
– underscore_d
Jun 21 '16 at 15:21
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Understanding keystore, certificates and alias
...the public key (the certificate) for that alias is embedded into the APK.
Now to answer your question, you can only release an update to an application that was signed with the alias 'foo' by signing the update again with the same alias. Losing the keystore where your alias is stored would prevent ...
Entity Framework code first unique column
...ength on your model:
[StringLength(450)]
Your model will look like this now in EF CF 6.1+:
public class User
{
public int UserId{get;set;}
[StringLength(450)]
[Index(IsUnique=true)]
public string UserName{get;set;}
}
Update:
if you use Fluent:
public class UserMap : EntityTypeC...
`testl` eax against eax?
...o revert your edit. 1. Your "voice" is very different from mine, and right now it reads a lot more like your answer than mine. 2. More problematic is the bold assertion that the flags come out exactly the same way between test and cmp. Yes, I understand that's your belief based on your comments to C...
Windows threading: _beginthread vs _beginthreadex vs CreateThread C++
...do it's own initialization of the thread. Only C/C++ programmers need to know this as they should now the rules of using their own development environment.
If you use _beginthread you do not need to call CloseHandle as the RTL will do for you. This is why you cannot wait on the handle if you have...
Python's equivalent of && (logical-and) in an if-statement
... || and ! are not valid Python operators.
Some of the operators you may know from other languages have a different name in Python.
The logical operators && and || are actually called and and or.
Likewise the logical negation operator ! is called not.
So you could just write:
if len(a) % ...
git command to show all (lightweight) tags creation dates
...tty="format:%ai %d"
I've put that command in an alias in my ~/.alias, so now everytime I run gitshowtagbydate I get what I needed.
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Working copy XXX locked and cleanup failed in SVN
...th Tortoise/SVN 1.7 (or at least I couldn't find any lock file as there is now a centralised DB with the metadata).
– pesche
Oct 6 '11 at 6:59
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