How to conduct arithmetic operations in JQuery?

Question

var price     = $(\'#addprice\').val();
var pass      = $(\'#pass\').val();
var total     = $(\'#totalprice\').attr(\'value\')
var left      = $(\'#leftquota\').attr         


        

Answer 1

i was looking for a solution too , and i saw a lot of questions here that doesn't work (even this one) in case someone wondering like me , here is my working solutiuon :

$("#apport").keyup( 
function(){
var apport = parseFloat($("#apport").val());
var montant = parseFloat($("#montant-financer").val());
var moinmontant = parseFloat(montant) - parseFloat(apport);     
$("#montant-financer").val(moinmontant);    
}
);

All the id's selector are input