Here is example of address:
Langstrasse 120, Zürich
1314 Grant Street, San Francisco
var addr = 'Langstrasse 120, Zürich'; var myA = addr.split(/(\d+)/g);
This will give you the House number from the Address and then replace this number with whole address, You will find the address without house number.
var full_address = addr.replace(myA,"");
myA will be house number and
full_address will be address without House number.