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Does ARC support dispatch queues?

...d as * Objective-C types when building with an Objective-C compiler. This allows * them to participate in ARC, in RR management by the Blocks runtime and in * leaks checking by the static analyzer, and enables them to be added to Cocoa * collections. * * NOTE: this requires explicit cancellati...
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Using 'return' in a Ruby block

... method, that's why you have LocalJumpError break returns value from block and ends its call. If your block was called by yield or .call, then break breaks from this iterator too next returns value from block and ends its call. If your block was called by yield or .call, then next returns value to l...
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How to change the default charset of a MySQL table?

... If you want to change the table default character set and all character columns to a new character set, use a statement like this: ALTER TABLE tbl_name CONVERT TO CHARACTER SET charset_name; So query will be: ALTER TABLE etape_prospection CONVERT TO CHARACTER SET utf8; ...
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What is the difference between decodeURIComponent and decodeURI?

... URI parts. encodeURI in less common, and misleadingly named: it should really be called fixBrokenURI. It takes something that's nearly a URI, but has invalid characters such as spaces in it, and turns it into a real URI. It has a valid use in fixing up invalid URIs from user input, and it can also...
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Is ASCII code 7-bit or 8-bit?

...ans it can be fit into 7-bits. So can't it be argued that ASCII bit is actually 7-bit code? 6 Answers ...
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How to set top-left alignment for UILabel for iOS application?

...ly easy to do. Create a UILabel sublcass with a verticalAlignment property and override textRectForBounds:limitedToNumberOfLines to return the correct bounds for a top, middle or bottom vertical alignment. Here's the code: SOLabel.h #import <UIKit/UIKit.h> typedef enum { VerticalAlignme...
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An async/await example that causes a deadlock

...lick for UI / MyController.Get for ASP.NET): The top-level method calls GetJsonAsync (within the UI/ASP.NET context). GetJsonAsync starts the REST request by calling HttpClient.GetStringAsync (still within the context). GetStringAsync returns an uncompleted Task, indicating the REST requ...
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jQuery UI Dialog - missing close icon

...eme. I downloaded every straight from the theme roller and I have intentionally not changed anything. 17 Answers ...
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Basic HTTP authentication with Node and Express 4

...he bare minimum you need: (you don't even need to parse the credentials at all) function (req, res) { //btoa('yourlogin:yourpassword') -> "eW91cmxvZ2luOnlvdXJwYXNzd29yZA==" //btoa('otherlogin:otherpassword') -> "b3RoZXJsb2dpbjpvdGhlcnBhc3N3b3Jk" // Verify credentials if ( req.headers.a...
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How to use SCNetworkReachability in Swift

... imported C structs have a default initializer in Swift, which initializes all of the struct's fields to zero, so the socket address structure can be initialized with var zeroAddress = sockaddr_in() sizeofValue() gives the size of this structure, this has to be converted to UInt8 for sin_len: zer...