How to Bundle JavaScript With Rollup

Heads up: this post was written in 2016, and some of the tools and prices may have changed. The code should still work, but you may want to look for a more up-to-date tutorial. This week, we’re going to build our first project using Rollup, which is a build tool for bundling JavaScript (and stylesheets, but we’ll get to that next week). By the end of this tutorial, we’ll have Rollup configured to: