Question

I’m new to both Javascript and the framework jQuery.

Basically I’m trying to say that if the quantity is greater than 1 then don’t charge a fee. However if it is equal to 1 charge a fee. But I don’t know how to store the variables while using jQuery.

My thought was… (is this correct?)

var qty = $(".qty_item");
var price = $(".price_item");
var fee = "";

if (qyt==1) {
    var fee = 250;
}

else {
    var fee = 0;
}

I’ve noticed though that in some jQuery plugins they declare variables like so…

qty: $(".qty_item"),
price: $(".price_item")

Any help is much appreciated.

Answer 1

To get values from elements, you need to use the $.val() method (assuming it’s an input element).

var price = $(".element").val();

So price would be 5 assuming the following HTML:

<input type="text" value="5" class="element" />

You could simplify your fee-finding logic by using a ternary operator too:

var fee = ($(".element").val() > 1) ? 250 : 0 ;

So if the value of our input (having the classname ‘element’) is greater than 1, fee will be 250. Else, fee will be the value of our input (having the id ‘price’).