javascript - jquery ajax action when there is no error -


i not understand off logic. have typical form use ajax submit data.

$('#contactform').on('submit',function(e){     var formmsg = $('#contactformreturnmsg');     formmsg.empty();     e.preventdefault();     $.post('contact.php', $('#contactform').serialize(),function(data){         if(data.error){             formmsg.append(data.error);         }else{             formmsg.append("email received!");           }     },"json"); });

when have error, error msgs appended correctly. if don't have error, not see else statement run through. why this?


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