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• Understanding ruby array sort

  - by user257797

  I am having a problem understanding how array.sort{|x,y| block} works exactly,hence how to use it? ruby-doc example: a = [ "d", "a", "e", "c", "b" ] a.sort #=> ["a", "b", "c", "d", "e"] a.sort {|x,y| y <=> x } #=> ["e", "d", "c", "b", "a"] thanks

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• How to display an activity loader automatically with all ajax requests?

  - by user257797

  I am working on Ruby on Rails application, with Prototype. I want to display a loading div automatically with every ajax request and hide it on completion, without writing code for every ajax request in my application. Is there anyway to do this. <div id="loader">Loading...</div>

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