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Xcode 4 hangs at “Attaching to (app name)”

... tip is to navigate to the Organizer (Shift ⇧ Command ⌘ 2 in xcode 4), select Projects, select you application in the left hand side and then the Delete...-button to the right of Derived Data. And never forget the universally useful tip: restart your computer and try again. Good luck! ...
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Get attribute name value of

... that you were able to add an ID attribute to your element and use that to select it. With that in mind, here are two pieces of code. First, the code given to you in the Accepted Answer: $("#ID").attr("name"); And second, the Vanilla JS version of it: document.getElementById('ID').getAttribute(...
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How to add external library in IntelliJ IDEA?

...ect top level, refresh/synchronize) Expand libs and right click on the jar Select "Add as Library" Done share | improve this answer | follow | ...
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Rails find record with zero has_many records associated [duplicate]

..._joins(:photos).where(photos: {id: nil}) which will result in SQL like: SELECT cities.* FROM cities LEFT OUTER JOIN photos ON photos.city_id = city.id WHERE photos.id IS NULL Using includes: City.includes(:photos).where(photos: {id: nil}) will have the same result, but will result in much ug...
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What's the fastest way to merge/join data.frames in R?

..., in fact, they are placed on tables which were overwritten before the sql select ever runs and that, in part, accounts for why its so slow. The idea of sqldf is that the data frames in your R session constitute the data base, not the tables in sqlite. Thus each time the code refers to an unqualif...
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FTP/SFTP access to an Amazon S3 Bucket [closed]

...also modifying the objects in the bucket. The value "30" in my system was selected somewhat arbitrarily. -o enable_noobj_cache (default is disable) enable cache entries for the object which does not exist. s3fs always has to check whether file(or sub directory) exists under object(path) when s3fs...
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Cannot convert lambda expression to type 'string' because it is not a delegate type [duplicate]

...ID == Value orderby q.RowID descending select q).FirstOrDefault(); Errors: Error 241 Cannot convert lambda expression to type 'string' because it is not a delegate type Error 242 Delegate 'System.Func<..>' does not take 1 arguments Error 243 The name 'Valu...
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What are the various “Build action” settings in Visual Studio project properties and what do they do

... as a default... I'm referring to the BuildAction property for each file selected in Solution Explorer. There are a number of options and it's difficult to know what each one of them will do. ...
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Xcode can only refactor C and Objective-C code. How to rename swift class name in Xcode 6?

...ame swift class from ViewController.swift to some other name. But when I select Refactor -> Rename, it gives error Xcode can only refactor C and Objective-C code . ...
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Wrapping chained method calls on a separate line in Eclipse for Java

...ormatter → Edit → Line wrapping (tab) Then, in the list at the left, select: Function Calls → Qualified invocations Now below this list, set Line wrapping policy to: Wrap all elements, except first element if not necessary Check: Force split, even if line shorter than maximu...