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Canvas width and height in HTML5
...width are the logical canvas dimensions used for drawing and are different from the style.height and style.width CSS attributes. If you don't set the CSS attributes, the intrinsic size of the canvas will be used as its display size; if you do set the CSS attributes, and they differ from the canvas d...
How to convert nanoseconds to seconds using the TimeUnit enum?
How to convert a value from nanoseconds to seconds?
7 Answers
7
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Make UINavigationBar transparent
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to achieve this in Swift from within a ViewController, do it like this: self.navigationController?.navigationBar.setBackgroundImage(UIImage(), forBarMetrics: UIBarMetrics.Default) self.navigationController?.navigationBar.shadowImage = ...
How to check whether a Storage item is set?
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ooh yeah, good points in there. Coming from a CSS background, the idea that I can fix browser issues myself is exciting, but I can see how mucking around with the browser’s objects could get confusing.
– Paul D. Waite
Jul 1...
How can I save my secret keys and password securely in my version control system?
...emote repository, the files will be transparently encrypted. When you pull from a local machine which has the .gitencrypt directory (containing your passphrase), the files will be transparently decrypted.
Notes
I should note that this tutorial does not describe a way to only encrypt your sensitive...
Pandas DataFrame Groupby two columns and get counts
...lt of the groupby size method is a Series with col5 and col2 in the index. From here, you can use another groupby method to find the maximum value of each value in col2 but it is not necessary to do. You can simply sort all the values descendingly and then keep only the rows with the first occurren...
Determine the number of NA values in a column
...e summary output when used on a single column is useable, while its output from an entire data frame is character and the counts are difficult to extract if you need them later. See c(summary(mtcars)).
– Rich Scriven
Aug 20 '16 at 19:11
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What does addChildViewController actually do?
...ery little. The side effects of the call are the important part. They come from the parentViewController and childViewControllers relationships. Here are some of the side effects that I know:
Forwarding appearance methods to child view controllers
Forwarding rotation methods
(Possibly) forwarding ...
JavaScript: remove event listener
... Unfortunately this doesn't work with ECMAScript 5 (2009) or later, from the MDN link: "The 5th edition of ECMAScript (ES5) forbids use of arguments.callee() in strict mode. Avoid using arguments.callee() by either giving function expressions a name or use a function declaration where a funct...
Should the folders in a solution match the namespace?
...ce.
In any case while you can't determine which folder a class file is in from the namespace, you can find it by using Go To Definition or the search solution explorer box in Visual Studio. Also this isn't really a big issue in my opinion. I don't expend even 0.1% of my development time on the prob...