Google’s Area 120 has released a new smartphone app designed to teach beginners how to write code. It’s called Grasshopper, and it kind of feels like Duolingo for coding.

Last week we enhanced a map interface with voice commands using annyang. This week we’ll extend our multi-modal interface even further by adding simple head-tracking using pico.js. Pico.js is a ...

Note that the starter app uses Babel to compile your JSX and ES6 into JavaScript and Webpack to bundle your JavaScript, but hides them from you to reduce the frustration of setting them up.