pretty164: Simple E.164 dash-inserter
Reformats E.164 strings by inserting dashes.
Usage
import { pretty164 } from "https://deno.land/x/pretty164@1.0.0/mod.ts";
pretty164("+14155552671");
//=> "+1-415-555-2671"
pretty164("+442071838750");
//=> "+44-20-7183-8750"
pretty164("nope");
//=> "nope"