ES6 is the specific flavour of JavaScript we're writing for it's much improved module support, making 100% vanilla JavaScript solutions a reality. It is also much more terse and expressive in its syntax (iterators, destructuring, arrow functions, etc).

As every piece of code being run in a website built on kickstartDS components is developed in a bespoke fashion, being able to rely on such best practives while also staying complete compatible and performant. As a result, component JavaScript can be used completely independent from the underlying framework or technology, and has its own dedicated build process for optimal code splitting and bundling.