[niea_11]

It's a subset of typescript : https://microsoft.github.io/devicescript/language

Microsoft did something similar before (without a vm) called Static Typescript : https://www.microsoft.com/en-us/research/publication/static-...

[mmoskal]

Same people :)

We tried to make DeviceScript closer in semantics to real JS (prototypes etc) and easier to port. You pay with performance.