javascript - Counting a hrefs then subtracting -

$(function() {  var getname = $('#fa_welcome').text();  var myname = getname.replace('welcome ',"");  var = $('#recent_topics').find('a[href*="/u"]').filter(':contains("'+myname+'")').length;  var b = $('#recent_topics').find('a[href*="/u"]').length;  var c = a-b;   if(c <= 1) {   $('.topics_name').append('<div title="'+c+' new post" id="newtops">'+c+'</div>');   }   }); 

just randomness give lengths of var , b

a= 15 b= 25

i want subtract these 2 in var c

15-25

though -25 parsed?

any suggestions

try parseint like

var = parseint($('#recent_topics').find('a[href*="/u"]').filter(':contains("'+myname+'")').length);  var b = parseint($('#recent_topics').find('a[href*="/u"]').length);