To me, minifaction will rename reallyClearFunctionName("string param") to a("string param").
While obfuscation would also encrypt the "string param" and then decrypt it at runtime. Minification's main purpose is to reduce the size, obfuscation will go one step futher and make it difficult to understand what is going on. Side note, it can be obfuscated but "maxified" (if that is a thing).
Side note: the joke goes that Perl is a write only language as it is difficult to read it and understand it. Some twisted souls decided to create the obfuscated perl content: https://en.wikipedia.org/wiki/Obfuscated_Perl_Contest
Side note: the joke goes that Perl is a write only language as it is difficult to read it and understand it. Some twisted souls decided to create the obfuscated perl content: https://en.wikipedia.org/wiki/Obfuscated_Perl_Contest
For a list of some of the winners: https://www.foo.be/docs/tpj/issues/vol4_3/tpj0403-0017.html