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What is the difference between :first-child and :first-of-type?

...g at have all been divs, but bear with me, I'll get to that in a bit. For now, the converse also holds true: any :first-child is also :first-of-type by necessity. Since the first child here is also the first div, it will match both pseudo-classes, as well as the type selector div: <div class="p...
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Is there a way to make R beep/play a sound at the end of a script?

...mething else on a different desktop. If I don't check frequently, I never know when something is finished. Is there a way to invoke a beep (like a system beep) or get R to play a sound or notify growl via some code at the end of my script? ...
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Git - How to use .netrc file on Windows to save user and password

...assword in plain text as shown below. With Git 1.8.3 (April 2013): You now can use an encrypted .netrc (with gpg). On Windows: %HOME%/_netrc (_, not '.') A new read-only credential helper (in contrib/) to interact with the .netrc/.authinfo files has been added. That script would allow you ...
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JavaScript: Object Rename Key

...m/BonsaiDen/JavaScript-Garden) about all the quirks (including the one you now have fixed), this might have put me into some kind of rant mode ;) (Removed the -1 now) – Ivo Wetzel Jan 10 '11 at 15:58 ...
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How to attach file to a github issue?

...esn't allow attaching files. Update: You can post images to GitHub issues now. The easiest way is to copy the image (right click, Copy image) and then paste it into the text box where you describe the issue. OR Just drag and drop ...
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Python vs Bash - In which kind of tasks each one outruns the other performance-wise? [closed]

...lly runs a short Bash script. That script, either directly or indirectly, knows where all the files needed are and sets variables and command line parameters, finally calling the program. That's a shell's simplest use. Linux as we know it however would hardly be Linux without the thousands of shell...
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Get an object properties list in Objective-C

...ion, which is mainly taken from an Apple code sample (can't remember right now the exact source): static const char *getPropertyType(objc_property_t property) { const char *attributes = property_getAttributes(property); char buffer[1 + strlen(attributes)]; strcpy(buffer, attributes); ...
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How do I set up email confirmation with Devise?

...devise:views # global rails generate devise:views users # scoped You can now override the mailer views in devise/mailer/confirmation_instructions.html.erb or users/mailer/confirmation_instructions.html.erb depending on your setup 4. For development environment add the following config lines in /c...
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Reversing a linked list in Java, recursively

I have been working on a Java project for a class for a while now. It is an implementation of a linked list (here called AddressList , containing simple nodes called ListNode ). The catch is that everything would have to be done with recursive algorithms. I was able to do everything fine sans one ...
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Can two applications listen to the same port?

... requests coming from a certain IP and the other to another remote IP? I know I can have one application that starts off two threads (or forks) to have similar behavior, but can two applications that have nothing in common do the same? ...