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“render :nothing => true” returns empty plaintext file?

... Since Rails 4, head is now preferred over render :nothing.1 head :ok, content_type: "text/html" # or (equivalent) head 200, content_type: "text/html" is preferred over render nothing: true, status: :ok, content_type: "text/html" # or (equiva...
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Removing whitespace between HTML elements when using line breaks

...n the images will be 0 in width, and the images won't be affected. Don't know if this works in all browsers, but I tried it with Chromium and some <li> elements with display: inline-block;. share | ...
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How to change the opacity (alpha, transparency) of an element in a canvas element after it has been

... figured out how to load the image and draw it to the canvas, but I don't know how to change its opacity once it as been drawn. ...
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Ways to iterate over a list in Java

... Thank you for that explanation; I think I understand what you are saying now and will update my question / comments accordingly. There's no "copying" per-se, but because of the language design in order to make changes to the contents of e I'd have to call one of e's methods because assignment just...
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rails i18n - translating text with links inside

...r}" if Rails.env.test? nil end end In the controller: flash.now[:alert] = t("path.to.translation") flash.now[:alert_link] = here_comes_the_link_path # or _url In the locale.yml: path: to: translation: "string with __link__ in the middle" In the view: <%= render_flash_me...
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Hidden Features of C#? [closed]

... makeHandler(1, 0); Note the chaining: (dx, dy) => (sender, e) => Now that's why I'm happy to have taken the functional programming class :-) Other than the pointers in C, I think it's the other fundamental thing you should learn :-) ...
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@try - catch block in Objective-C

... Now I've found the problem. Removing the obj_exception_throw from my breakpoints solved this. Now it's caught by the @try block and also, NSSetUncaughtExceptionHandler will handle this if a @try block is missing. ...
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How do you force Visual Studio to regenerate the .designer files for aspx/ascx files?

...context menu for as(c/p)x files. When this is done you should see that you now have a *.Designer.cs file available and your controls within the Design HTML will be available for your control. PS: This should not be done in debug mode, as not everything is "recompiled" when debugging. Some people h...
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Differences in boolean operators: & vs && and | vs ||

I know the rules for && and || but what are & and | ? Please explain these to me with an example. 11 Ans...
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How can I pretty-print JSON in a shell script?

... I'm seeing every time and/or b) NOT sort the json keys; please do let me know, I will be highly thankful. – Clint Eastwood Feb 25 '15 at 17:42  |  ...