使用javascript与表达式进行比较

Question

here is my code

   function isDepositGreaterThanAvailable(){
   var deposit=$("#total").val();
   var available=$("#availableCash").val();

   if(deposit>available){
       $("#total").val(0);
       var msg = {
           "class": "com.docu.common.Message",
           "messageBody": ["Deposit must be less than or equal to Available Cash"],
           "messageTitle": "Message",
           "type": 2
       }
       MessageRenderer.render(msg);
       return false;
   }

   }

if deposit is greater than available then an error message shows.but when deposit is smaller than available,it shows error too.please help me to solve it.

Answer 1

When you get a value out of an input element using jQuery .val() , it will always be a string. It doesn't matter that the input element is type="number". The JavaScript value is a string. Use the following if condition:

if(parseInt(deposit) > parseInt(available))

EDIT:
As pointed rightly by @nnnnnn, you might want to use parseFloat() as you are dealing with currency.