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How to close tag properly?
...t;
Works fine and closes the tag properly. Best to add the alt attribute for people that are visually impaired.
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What's the difference between the data structure Tree and Graph?
...
A Tree is just a restricted form of a Graph.
Trees have direction (parent / child relationships) and don't contain cycles.
They fit with in the category of Directed Acyclic Graphs (or a DAG).
So Trees are DAGs with the restriction that a child can onl...
“Auto Layout still required after executing -layoutSubviews” with UITableViewCell subclass
...with custom cells. I've done this a hundred times in iOS 5 and below, but for some reason the new autoLayout system is giving me a lot of trouble.
...
Why is a ConcurrentModificationException thrown and how to debug it
...le, there is most likely a threading issue which is causing the conditions for this exception to occur. Which makes it all the more confusing because of the exception name.
– Robin
Mar 2 '09 at 15:42
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How to add images to README.md on GitHub?
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I actually ended up going with the relative paths (which for me is just the name of the image file because I have everything in root). I had been maintaining 2 copies of the README.md, one for local installation in /usr/share/projectname/docs, and one for github. Now, I can just us...
A fast method to round a double to a 32-bit int explained
...ou correctly stated, 6755399441055744 is 2^51 + 2^52; adding such a number forces the double to go into the "sweet range" between 2^52 and 2^53, which, as explained by Wikipedia here, has an interesting property:
Between 252=4,503,599,627,370,496 and 253=9,007,199,254,740,992 the representable n...
How is “=default” different from “{}” for default constructor and destructor?
...different story. The same is true of constructors.
Using = default syntax for special member functions (default constructor, copy/move constructors/assignment, destructors etc) means something very different from simply doing {}. With the latter, the function becomes "user-provided". And that chang...
Conditions for automatic generation of default/copy/move ctor and copy/move assignment operator?
...member functions are declared, but defined as deleted." refer to where you for example have const or reference members where move will be impossible? No, that can't be, because there copy will be applied.
– towi
Sep 27 '16 at 7:37
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Looping a video with AVFoundation AVPlayer?
...t];
[p seekToTime:kCMTimeZero];
}
this will rewind the movie.
Don't forget un unregister the notification when releasing the player.
Swift
avPlayer?.actionAtItemEnd = .none
NotificationCenter.default.addObserver(self,
selector: #selector(playerItemDid...
test a file upload using rspec - rails
...ing:
Put your test file in "{Rails.root}/spec/fixtures/files" directory
before :each do
@file = fixture_file_upload('files/test_lic.xml', 'text/xml')
end
it "can upload a license" do
post :uploadLicense, :upload => @file
response.should be_success
end
In case you were expecting the file...