Asset Pipeline

Topics

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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