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How to check null objects in jQuery
...e the length property of the jQuery collection returned by your selector:
if ( $('#myDiv').length ){}
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Waiting until two async blocks are executed before starting another block
...rrently? I mean, assume that block1 and block2 are associated with a group now, will block2 wait until block1 is done before it can start executing?
– tom
Aug 10 '12 at 22:25
9
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Regex not operator
...ver:
\((?!2001)[0-9a-zA-z _\.\-:]*\)
The (?!...) part means "only match if the text following (hence: lookahead) this doesn't (hence: negative) match this. But it doesn't actually consume the characters it matches (hence: zero-width).
There are actually 4 combinations of lookarounds with 2 axes:...
How to loop backwards in python? [duplicate]
...
range() and xrange() take a third parameter that specifies a step. So you can do the following.
range(10, 0, -1)
Which gives
[10, 9, 8, 7, 6, 5, 4, 3, 2, 1]
But for iteration, you should really be using xrange instead. So,
xrange(10, 0, -1)
Note for Python 3 users:...
Creating a constant Dictionary in C#
... case "elephant": return 3;
}
This is exactly what you want. And yes, I know, it's ugly.
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How to make a phone call using intent in Android?
...t placed call permissions tag before application tag in manifest file
and now every thing is working fine.
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Can't find Request.GetOwinContext
...nitions you have should be fine.
EDIT
Okay, to clear up some confusion: If you are using an ApiController (i.e MyController : ApiController) you will require the Microsoft.AspNet.WebApi.Owin package.
If you are using a regular Mvc controller (i.e. MyController : Controller) you will need the Mi...
How to dismiss keyboard iOS programmatically when pressing return
...ller.h add:
@property (nonatomic) UITapGestureRecognizer *tapRecognizer;
Now in the .m file, add this to your ViewDidLoad function:
- (void)viewDidLoad {
[super viewDidLoad];
//Keyboard stuff
tapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleS...
Multiple DB Contexts in the Same DB and Application in EF 6 and Code First Migrations
...Code First Migrations. I am using Areas in the app and would like to have different DbContexts in each area to break it up. I know EF 6 has ContextKey, but I can't find complete information on how to use it. Currently I can only use migrations one context at a time.
...
Convert Unix timestamp to a date string
...-r the same as these other implementations. So unfortunately you have to know which version of date you're using, and many older Unix date commands don't support either option.
Even worse, POSIX date recognizes neither -d nor -r and provides no standard way in any command at all (that I know of) t...