Lollipop 2.0 is built using new tools

YarnFast, reliable, and secure dependency management.
GulpToolkit for automating painful or time-consuming tasks in your development workflow, so you can stop messing around and build something
WebpackModule bundler. It packs CommonJs/AMD modules i. e. for the browser.
ES6Significant update to the language, and the first update to the language since ES5 was standardized in 2009. Implementation of these features in major JavaScript engines is underway now.
jQueryThe Write Less, Do More, JavaScript Library.
PugHigh performance template engine heavily influenced by Haml and implemented with JavaScript for Node.js and browsers.
SassThe most mature, stable, and powerful professional grade CSS extension language in the world.