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Draw line in UIView

... The "if let context" fails when called from viewDidLayoutSubviews. – Oscar Mar 1 at 7:11 add a comment  |  ...
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CABasicAnimation resets to initial value after animation completes

..., your instance will be retained by the animation. So, after calling removeFromSuperview if you forget to remove/destroy the animation by yourself, dealloc for instance will not be called. You'll have a memory leak. – emrahgunduz Jan 22 '15 at 14:07 ...
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“f” after number

What does the f after the numbers indicate? Is this from C or Objective-C? Is there any difference in not adding this to a constant number? ...
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How to save and restore multiple different sessions in Vim?

...not specify a session file name, it will default to writing to and reading from Session.vim. So if you only want to have only one session saved in your current directory, you can use :mksession or :mks from vim to save your current session, and just vim -S to open it back up. –...
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Re-enabling window.alert in Chrome

I accidently checked the "disable alerts from this site" box in Chrome, and now I cannot get any window.alert to work on my localhost. ...
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What are the most interesting equivalences arising from the Curry-Howard Isomorphism?

...u/~fp/papers/mscs00.pdf - this is a great place to start because it starts from first principles and much of it is aimed to be accessible to non-logicians/language theorists. (I'm the second author though, so I'm biased.) s...
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vector vs. list in STL

...aching works better for sequential data. It's all available in his keynote from "GoingNative 2012" – evading Feb 19 '13 at 8:28  |  show 8 mor...
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How do you return from 'gf' in Vim

I am using Vim for windows installed in Unix mode. Thanks to this site I now use the gf command to go to a file under the cursor. ...
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Python to print out status bar and percentage

... There's a Python module that you can get from PyPI called progressbar that implements such functionality. If you don't mind adding a dependency, it's a good solution. Otherwise, go with one of the other answers. A simple example of how to use it: import progressba...
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Doctrine2: Best way to handle many-to-many with extra columns in reference table

...tion" This was really enlightening. I just couldn't think about a relation from an entity perspective! – Onion Feb 5 '16 at 16:31 ...