#!/usr/bin/env js
var email = " hogehoge@example.com \n";
print(email);
email = email.trim();
print(email);
var localpart = "", domainpart = "";
 var atpos = email.indexOf('@');
  if (atpos >= 0 && atpos == email.lastIndexOf('@')) {
    localpart = email.substring(0, atpos);
      domainpart = email.substr(atpos+1);
  }
print(`local=${localpart}, dom=${domainpart}`);