What are dynamical scope advantages?

Question

What actually are dynamical scope advantages over lexical/statical one with respect to compilation, runtime and others low-level efficiencies ?a direct, easily seen edge to us as coders is the better readability, being less fussy argument/parameter passing

PaulHoule · Accepted Answer

Every so often I like to &lsquo;break the rules&rsquo; and write functions that look up the stack to find variables that they should not normally have access to. (TCL and Python are notorious being able to do this, C also if you are inzane.)One range of applications is when you are writing a set of functions intended for interactive use in the REPL and you want to keep context between them. These days though I use contextvars to do that, in the JVM world thread local variables are a great way to do that (Clojure uses them to set numeric precision.)