sprockets-bumble_d (rubygems):     This gem provides a plugin for Sprockets to transpile modern javascript     using Babel.      Unlike other options in the sprockets ecosystem, it works with the latest     version of Babel and any plugins/presets you install.      A primary use case for this gem is to facilitate incremental migration of a     large Sprockets-powered javascript codebase to ES6 modules by transforming     them to UMD modules that preserve your existing global variable references     (hence the name: Babel + UMD = BumbleD). That said, this gem can be used for     general purpose babel transpilation within the Sprockets pipeline. 
Keywords: asset-pipeline|babel|babel-plugin|es2015|es2015-modules|es6-modules|incremental|javascript-globals|migration|rails|sprockets|sprockets-plugin|sprockets-transformer|umd-modules