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Unbalanced calls to begin/end appearance transitions for

...e not-suitable (like during initialization) procedure finishes, by doing: __weak MyViewController *weakSelf = self; dispatch_async(dispatch_get_main_queue(), ^{ [weakSelf presentViewController:vc animated:YES]; }); This is general for also pushViewController:animated:, etc. ...
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How to write a multidimensional array to a text file?

...200).reshape((4,5,10)) with open('test.txt', 'w') as outfile: for slice_2d in x: np.savetxt(outfile, slice_2d) However, our goal is to be clearly human readable, while still being easily read back in with numpy.loadtxt. Therefore, we can be a bit more verbose, and differentiate the slic...
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Different font size of strings in the same TextView

...ext size int textSize1 = getResources().getDimensionPixelSize(R.dimen.text_size_1); int textSize2 = getResources().getDimensionPixelSize(R.dimen.text_size_2); and then create a new AbsoluteSpan based on the text String text1 = "Hi"; String text2 = "there"; SpannableString span1 = new SpannableS...
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ASP.NET MVC JsonResult Date Format

...to "\\/"). See http://msdn.microsoft.com/en-us/library/bb299886.aspx#intro_to_json_topic2 for a better explanation (scroll down to "From JavaScript Literals to JSON") One of the sore points of JSON is the lack of a date/time literal. Many people are surprised and disappointed to learn thi...
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What's the difference between HEAD^ and HEAD~ in Git?

...> [ qw/ I J / ], ); sub postorder { my($root,$hash) = @_; my @parents = @{ $parents{$root} || [] }; postorder($_, $hash) for @parents; return if $sha1{$root}; @parents = map "-p $sha1{$_}", @parents; chomp($sha1{$root} = `git commit-tree @parents -m "$root" $hash`); d...
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How to restore to a different database in sql server?

...F' TO 'c:\MyTempCopy.mdf', MOVE 'LogicalNameForTheLDF' TO 'c:\MyTempCopy_log.ldf' To create the database MyTempCopy with the contents of your.bak. Example (restores a backup of a db called 'creditline' to 'MyTempCopy'; RESTORE FILELISTONLY FROM DISK='e:\mssql\backup\creditline.bak' >Logic...
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How to only get file name with Linux 'find'?

... of xargs without -n1. It gives the correct result and it's the fastest ¯\_(ツ)_/¯ (basename takes only 1 path argument but xargs will send them all (actually 5000) without -n1. does not work on linux and openbsd, only macOS...) Some bigger numbers from a linux system to see how -execdir helps...
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XMLHttpRequest status 0 (responseText is empty)

...red Apr 16 '12 at 11:58 Abhishek_8Abhishek_8 57144 silver badges22 bronze badges ...
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Rails 4 multiple image or file upload using carrierwave

... from a file selection window using Rails 4 and CarrierWave? I have a post_controller and post_attachments model. How can I do this? ...
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Does SQLAlchemy have an equivalent of Django's get_or_create?

...ortcut readily available AFAIK. You could generalize it ofcourse: def get_or_create(session, model, defaults=None, **kwargs): instance = session.query(model).filter_by(**kwargs).first() if instance: return instance, False else: params = dict((k, v) for k, v in kwargs.it...