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Set default CRAN mirror permanent in R

...?Startup: The path of this file is taken from the value of the R_PROFILE environment variable (after tilde expansion). If this variable is unset, the default is R_HOME/etc/Rprofile.site, which is used if it exists (which it does not in a 'factory-fresh' installation)...
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Using custom fonts using CSS?

... Generically, you can use a custom font using @font-face in your CSS. Here's a very basic example: @font-face { font-family: 'YourFontName'; /*a name to be used later*/ src: url('http://domain.com/fonts/font.ttf'); /*URL to ...
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Cell spacing in UICollectionView

... This is a much better answer. Take a look at the callbacks you can adjust in the UICollectionViewDelegateFlowLayout and you can see how this can be tweaked. – cynistersix Dec 17 '14 at 2:52 ...
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Secret copy to clipboard JavaScript function in Chrome and Firefox?

...learConsoleMessages(); } > copy function (object) { if (injectedScript._type(object) === "node") object = object.outerHTML; InjectedScriptHost.copyText(object); } While the Firebug source also defines a list of functions: this.clear = function() // no web page interaction { Firebug.Cons...
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Sending HTTP POST Request In Java

...alue(), "UTF-8")); byte[] out = sj.toString().getBytes(StandardCharsets.UTF_8); int length = out.length; We can then attach our form contents to the http request with proper headers and send it. http.setFixedLengthStreamingMode(length); http.setRequestProperty("Content-Type", "application/x-www-f...
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Build and Version Numbering for Java Projects (ant, cvs, hudson)

...c build numbering and version number management in Java projects? Specifically: 9 Answers ...
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How do I get the picture size with PIL?

...#2: Pygame import pygame img = pygame.image.load(filepath) width = img.get_width() height = img.get_height() share | improve this answer | follow | ...
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validation custom message for rails 3

...ant to remove the field title from the message you should use this on your _form.htmk.erb view: As you can see inside this view: <ul> <% @article.errors.full_messages.each do |msg| %> <li><%= msg %></li> <% end %> </ul> Replace it by: <ul> ...
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How to set a value of a variable inside a template code?

... If you need to declare a list, use make_list. docs.djangoproject.com/en/1.9/ref/templates/builtins/#make-list – MrValdez Jul 1 '16 at 7:55 ...
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How to play a local video with Swift?

... class ViewController: UIViewController { override func viewDidAppear(_ animated: Bool) { super.viewDidAppear(animated) playVideo() } private func playVideo() { guard let path = Bundle.main.path(forResource: "video", ofType:"m4v") else { debugPrint("...