webpack

TLDR

Create a single output file from an entry point file

$ webpack [app.js] [bundle.js]

Load CSS files too from the JavaScript file (this uses the CSS loader for .css files)

$ webpack [app.js] [bundle.js] --module-bind '[css=css]'

Pass a config file (with e.g. the entry script and the output filename) and show compilation progress

$ webpack --config [webpack.config.js] --progress

Automatically recompile on changes to project files

$ webpack --watch [app.js] [bundle.js]