Asset Pipeline


  • What is and Why Asset Pipeline? 
  • How to use Asset Pipeline 
  • Pre-processing 
  • Asset Pipeline in Development 
  • Asset Pipeline in Production 
  • Asset Helper Method

What is and Why Asset Pipeline? 

  • Introduced from Rails 3.1 via Sprockets gem 
    • Prior to Rails 3.1 these features were added through third-party Ruby libraries such as Jammit and Sprockets 
    • Rails 3.1 is integrated with Sprockets through Action Pack which includes the Sprockets gem, by default 
  • What is Sprockets gem? 
    • Sprockets is a Ruby library for compiling and serving web assets 
    • It features declarative dependency management for JavaScript and CSS assets, as well as a powerful preprocessor pipeline that allows you to write assets in languages like CoffeeScript, Sass, SCSS and LESS 
  • Asset pipeline is enabled by default 
    • In Rails 3, as part of Action Pack (of Rails core) 
    • In Rails 4, through “sprockets-rails” gem

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