"Transpiling" _is_ compiling. The term is just used to refer to output that is another high-level language, rather than some kind of assembly or bytecode. Whi

"Transpiling" _is_ compiling. The term is just used to refer to output that is another high-level language, rather than some kind of assembly or bytecode. While I haven't looked at the implementations of any of those compilers, I would assume that most of them do actually parse their source language into an appropriate AST, and write out JS based on that AST.