func: first, second, rest... => rest.join ' ' result: func 1, 2, 3, 4, 5 print result is "3 4 5" gold: silver: bronze: the_field: null medalists: first, second, third, rest... => gold: first silver: second bronze: third the_field: rest contenders: [ "Michael Phelps" "Liu Xiang" "Yao Ming" "Allyson Felix" "Shawn Johnson" "Roman Sebrle" "Guo Jingjing" "Tyson Gay" "Asafa Powell" "Usain Bolt" ] medalists "Mighty Mouse", contenders... print gold is "Mighty Mouse" print silver is "Michael Phelps" print bronze is "Liu Xiang" print the_field.length is 8