Four things about Ruby method arguments that still catch experienced developers

I've written Ruby for years. Recently I sat down and worked through method arguments properly — not "I know what *args does", but end to end, every form, every edge. A few things genuinely surprised me. Here are four. All of them run on Ruby 3.2+. 1. A splat doesn't have to go last Most of us learn *args as "and everything else, at the end". It isn't. def log ( time , level , * words , source ) [ time , level , words , source ] end log ( "12:00" , :warn , "disk" , "almost" , "full" , "kernel" )…