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NSUserDefaults - How to tell if a key exists

... I've confirmed this, but there is an easy solution; just use the new object literals or a boxed expression. @0 instead of 0, @NO instead of NO, or simply @(variable). Read about them here. – kaka ...
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@RequestParam vs @PathVariable

...accepted by the annotations @PathVariable and @RequestParam. To check and confirm the behavior I have created a spring boot application that contains only 1 controller. @RestController public class Controller { @GetMapping("/pvar/{pdata}") public @ResponseBody String testPathVariable(@P...
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How to make Visual Studio copy a DLL file to the output directory?

...rojectDir)..\External\*.dll" "$(TargetDir)" The /y option copies without confirmation. The /d option checks to see if a file exists in the target and if it does only copies if the source has a newer timestamp than the target. I found that in at least newer versions of Visual Studio, such as VS210...
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Scala list concatenation, ::: vs ++

... no difference, but in the case of 3 or more, you have a good point, and I confirmed it with a quick benchmark. However, if you're worried about efficiency, x ::: y ::: z should be replaced with List(x, y, z).flatten. pastebin.com/gkx7Hpad – Luigi Plinge Aug 21...
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'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine

...tem Driver: Data Connectivity Components here microsoft.com/en-us/download/confirmation.aspx?id=23734 to get it to work. – Chris Dec 15 '15 at 14:27 ...
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What IDE to use for Python? [closed]

...mmercial F - Free CF - Commercial with Free limited edition ? - To be confirmed I don't mention basics like syntax highlighting as I expect these by default. This is a just dry list reflecting your feedback and comments, I am not advocating any of these tools. I will keep updating this lis...
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Collisions when generating UUIDs in JavaScript?

... Can any one confirm if this bug has been addressed? – Xdrone May 5 '14 at 17:26  |  ...
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Play audio with Python

... @Calvin-Ruiz I just confirmed that I am able to use the above code in FC31 to play MP3 and Ogg files. I think you have a larger problem that likely needs some detailed knowledge of your platform. – TML Nov ...
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Getting “net::ERR_BLOCKED_BY_CLIENT” error on some AJAX calls

... I've confirmed this and also notified the team at unsplash.com – Tony O'Hagan Jun 17 at 22:30 add a comme...
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How do you pass arguments to define_method?

... Chinasaur is correct about block arguments allowing splats. I've confirmed this in both Ruby 1.8.7 and 1.9.1. – Peter Wagenet Oct 4 '09 at 22:34 ...