Does anyone know how to modify this code so that it rounds 2 digits after cumma?

[bm4499]

Does anyone know how to modify this code so that it rounds 2 digits after cumma?

 

 

style="width:15%;" onchange="document.getElementById('total').value = ((parseInt(document.getElementById('f1').value) + parseInt(document.getElementById('f2').value) + parseInt(document.getElementById('f3').value) + parseInt(document.getElementById('f4').value) + parseInt(document.getElementById('f5').value) + parseInt(document.getElementById('f6').value) + parseInt(document.getElementById('f7').value) + parseInt(document.getElementById('f8').value) + parseInt(document.getElementById('f9').value) + parseInt(document.getElementById('fa').value) + parseInt(document.getElementById('fb').value) + parseInt(document.getElementById('fc').value))*1.50);"
I've seen the round function but have no idea to use it in the case above. Normally I work with functions.

[Adam]

Make things easier for yourself and move it all to a function, where you can also structure the code to make it easier to read:

 

function calculateTotal() {
    document.getElementById('total').value =
         (parseInt(document.getElementById('f1').value)
        + parseInt(document.getElementById('f2').value)
        + parseInt(document.getElementById('f3').value)
        + parseInt(document.getElementById('f4').value)
        + parseInt(document.getElementById('f5').value)
        + parseInt(document.getElementById('f6').value)
        + parseInt(document.getElementById('f7').value)
        + parseInt(document.getElementById('f8').value)
        + parseInt(document.getElementById('f9').value)
        + parseInt(document.getElementById('fa').value)
        + parseInt(document.getElementById('fb').value)
        + parseInt(document.getElementById('fc').value))
        * 1.50;
}

 

Then change the event attribute to:

 

onchange="calculateTotal();"

[Adam]

Forgot to actually answer your question in my last post... Store the total within a variable, and use the toFixed method to round it to two decimal places:

 

function calculateTotal() {
    var total =
         (parseInt(document.getElementById('f1').value)
        + parseInt(document.getElementById('f2').value)
        + parseInt(document.getElementById('f3').value)
        + parseInt(document.getElementById('f4').value)
        + parseInt(document.getElementById('f5').value)
        + parseInt(document.getElementById('f6').value)
        + parseInt(document.getElementById('f7').value)
        + parseInt(document.getElementById('f8').value)
        + parseInt(document.getElementById('f9').value)
        + parseInt(document.getElementById('fa').value)
        + parseInt(document.getElementById('fb').value)
        + parseInt(document.getElementById('fc').value))
        * 1.50;

    document.getElementById('total').value = total.toFixed(2);
}

[Adam]

By the way, it's called a "comma".