jquery - regex - match HTML tags that don't contain @'s -

i trying write function determines if string contains html tags. following works fine:

self.containstags = ko.computed(function() {   if(/<[a-z][\s\s]*>/i.test(self.response())) {     return true;   } else {     return false;   } }, self); 

except, matches email addresses, eg. <test@mail.com> , </test@mail.com>. want search through string , if finds tag, return true unless email address above - continue searching through string , return true if finds actual html tag or false if doesn't.

here wrote, unfortunately doesn't work want to:

self.containstags = ko.computed(function() {   if(/<[a-z][\s\s]((?!@).)*>/i.test(self.response())) {     return true;   } else {     return false;   } }, self);  

whats regex ?

/<[^@<>]+>/i