Google’s in-house incubator Area 120 has just released an app called Grasshopper, which teaches you how to code JavaScript through a series of fun mini-games.

The JavaScript is still working behind the scenes. Essentially, we get a more granular HTML syntax, which can just load segments instead of whole pages, and can submit Ajax requests.

Google's incubator for employees' "20 percent time" side projects, Area 120, typically produces fun things like an app to make YouTube more social and expanding Smart Replies. Now the workshop has ...