A discrete compilation step is optional. The most sophisticated way to run a program is within an interpreter where runtime analysis is used to determine which

A discrete compilation step is optional. The most sophisticated way to run a program is within an interpreter where runtime analysis is used to determine which parts, if any, of the program to compile, and with what "flags". Transpilation, however, is by definition not optional. It is frustrating to hear a complaint about someone who chose to write in Clojure, itself a layer on the JVM interpreter, and then chose to support a transpilation target, Clojurescript. If compile times bother you, then pick another stack. However, if you want to write code in a functional way and target both the JVM and JS, then this is the price you pay.