This is done using Blockly, a visual programming editor, and you can click on a button at any time to see the colorful blocks of code turn into the basic Javascript that is driving the program.

Ozobot’s Tiny Robots Use Squiggly Lines And Google’s Blockly To Teach Kids To Code Ingrid Lunden 8:29 AM PST · January 5, 2015 ...

Blockly looks strikingly similar to Scratch, in fact, except it can export the code blocks or show you the code beneath in JavaScript, Dart, Python, and XML. It's a learning tool that both kids ...

Blockly programming, suitable for users of all skill levels. Compatibility with Chromebook and Mac devices. Browser-based functionality, with no need to download or install external apps.