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Xcode 4: create IPA file instead of .xcarchive
In Xcode 3.2.5 I use "Build And Archive" to create an IPA file. In Xcode 4 you can use "Product -> Archive" to archive an application in an .xcarchive bundle.
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dealloc in Swift
I would like to perform some cleanup at the end of a view controller's life, namely to remove an NSNotificationCenter notification. Implementing dealloc results in a Swift compiler error:
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CSS way to horizontally align table
I want to show a table of fixed width at the center of browser window. Now I use
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What is the HTML tabindex attribute?
... not focusable elements (<div>, <span> and so on), and the way to make your interface be responsive not only to mouse events but also to keyboard events (e.g. 'onkeypress') is to make such elements focusable. Lastly, if you don't want to set the order but just make your element focusable...
What is the difference between IQueryable and IEnumerable?
...o with an IQueryable<T>.
IEnumerable<T> just has a GetEnumerator() method that returns an Enumerator<T> for which you can call its MoveNext() method to iterate through a sequence of T.
What IQueryable<T> has that IEnumerable<T> doesn't are two properties in particula...
How do shift operators work in Java? [duplicate]
I am trying to understand the shift operators and couldn't get much.
When I tried to execute the below code
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Connection to SQL Server Works Sometimes
An ADO.Net application is only sometimes able to connect to another server on the local network. It seems random whether a given connection attempt succeeds or fails. The connection is using a connection string in the form:
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How to validate an email address in PHP
I have this function to validate an email addresses:
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What is the claims in ASP .NET Identity
...at are based on Role and Claim.
Role-Based Security
A user gets assigned to one or more roles through which the user gets access rights.
Also, by assigning a user to a role, the user immediately gets all the access rights defined for that role.
Claims-Based Security
A claims-based identity is th...
Is it possible to send a variable number of arguments to a JavaScript function?
Is it possible to send a variable number of arguments to a JavaScript function, from an array?
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