Static TypeScript (STS)

Microsoft Presents Static TypeScript, a Fast Subset of TypeScript Targeting Embedded Devices

Static TypeScript is a syntactic subset of TypeScript, built specifically to target microcontroller units (MCUs), and which compiles to machine code that runs efficiently on MCUs in the target RAM range of 16-256kB.

STS eliminates the most dynamic features of JavaScript, like with, eval, prototype-based inheritance, the arguments keyword, or the .apply method. The this pointer and the new syntax are not allowed outside classes or on non-class types. STS also does not implement recent additions to the JavaScript language, such as generators, the await and async function expressions, or file-based modules.