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Convert a character digit to the corresponding integer in C

...the same for letters, for example: char c = 'b'; int x = c - 'a'; // x is now not necessarily 1 The standard guarantees that the char values for the digits '0' to '9' are contiguous, but makes no guarantees for other characters like letters of the alphabet. ...
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Is there a shortcut to make a block comment in Xcode?

... parameters} return "/*\n" & (input as string) & "*/" end run Now you can access that service through Xcode - Services menu, or by right clicking on the selected block of code you wish to comment, or giving it a shortcut under System Preferences. ...
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How to use android emulator for testing bluetooth application?

... adapter to 'Bridged'. · Start the VM and select 'Live CD VESA' at boot. Now you need to find out the IP of this VM. Go to terminal in VM (use Alt+F1 & Alt+F7 to toggle) and use the netcfg command to find this. Now you need open a command prompt and go to your android install folder (on host)...
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“Eliminate render-blocking CSS in above-the-fold content”

...ly degrade user experience by showing FOUT! – publicknowledge Feb 1 '16 at 1:33  |  show 7 more comments ...
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JavaScript - get the first day of the week from current date

... Using the getDay method of Date objects, you can know the number of day of the week (being 0=Sunday, 1=Monday, etc). You can then subtract that number of days plus one, for example: function getMonday(d) { d = new Date(d); var day = d.getDay(), diff = d.getDate()...
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How to make Git “forget” about a file that was tracked but is now in .gitignore?

There is a file that was being tracked by git , but now the file is on the .gitignore list. 27 Answers ...
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Computational complexity of Fibonacci Sequence

I understand Big-O notation, but I don't know how to calculate it for many functions. In particular, I've been trying to figure out the computational complexity of the naive version of the Fibonacci sequence: ...
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XmlSerializer: remove unnecessary xsi and xsd namespaces

...private XmlSerializerNamespaces _namespaces; } That's all to this class. Now, some objected to having an XmlSerializerNamespaces object somewhere within their classes; but as you can see, I neatly tucked it away in the default constructor and exposed a public property to return the namespaces. No...
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How to capture the “virtual keyboard show/hide” event in Android?

... 2020 Update This is now possible: On Android 11, you can do view.setWindowInsetsAnimationCallback(object : WindowInsetsAnimation.Callback { override fun onEnd(animation: WindowInsetsAnimation) { super.onEnd(animation) val sho...
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bodyParser is deprecated express 4

...structor has been deprecated, as of 2014-06-19. app.use(bodyParser()); //Now deprecated You now need to call the methods separately app.use(bodyParser.urlencoded()); app.use(bodyParser.json()); And so on. If you're still getting a warning with urlencoded you need to use app.use(bodyParser....