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Install Gem from Github Branch?

... You don't need to build the gem locally. In your gemfile you can specify a github source with a ref, branch or tag. gem 'rails', :git => "git://github.com/rails/rails.git", :ref => "4aded" gem 'rails', :git => "git://github.com/rails/rails.git", :bra...
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Responsive css background images

...ave defined a bg-image for the content) also responsive. Unfortunately I really don't have any idea on how to do this except for one thing that I can think of but it's quite a workaround. Creating multiple images and then using css screen size to change the images but I wanna know if there is a more...
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What is the purpose of wrapping whole Javascript files in anonymous functions like “(function(){ … }

... It's usually to namespace (see later) and control the visibility of member functions and/or variables. Think of it like an object definition. The technical name for it is an Immediately Invoked Function Expression (IIFE). jQuery plug...
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WebSockets protocol vs HTTP

...kets is better for situations that involve low-latency communication especially for low latency for client to server messages. For server to client data you can get fairly low latency using long-held connections and chunked transfer. However, this doesn't help with client to server latency which req...
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Sequence contains no elements?

...boxes for the title and content, the ID and date aren't put on the page at all. Could this be the reason for it passing them as null\new? – Andy Hunt Aug 24 '09 at 19:43 2 ...
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Twitter Bootstrap: div in container with 100% height

... The #map is actually obscured behind the navbar in this example. – Ethereal May 7 '13 at 19:57  |...
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Why doesn't Haskell's Prelude.read return a Maybe?

...ersions floating around many codebases). See also this discussion. Personally, I use the version from the safe package. share | improve this answer | follow ...
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How can I quickly delete a line in VIM starting at the cursor position?

...atever was yanked before. The true delete command in the OP's context is "_D (or "_C if insert mode is desired) This sends the deleted content into the black hole register, designated by "_, where it will bother no one ever again (although you can still undo this action using u). That being said,...
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Real life example, when to use OUTER / CROSS APPLY in SQL

... ORDER BY pr.name) pa ORDER BY pr.name, pa.name 2) Calling a Table Valued Function for each row in the outer query SELECT * FROM sys.dm_exec_query_stats AS qs CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) 3) Reusing a column alias SELECT number, doubled_number...
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UITableView row animation duration and completion callback

...o either specify the duration for UITableView row animations, or to get a callback when the animation completes? 10 Answers...