Possible Duplicate:
JavaScript: formatting number with exactly two decimals
How do I limit the following jQuery return to 2 decimal places?
$("#diskamountUnit").val('$' + $("#disk").slider("value") * 1.60);
I figure I've got to throw toFixed(2) somewhere into there, but I can't seem to get the ordering right or something.
You could use a variable to make the calculation and use toFixed
when you set the #diskamountUnit
element value:
var amount = $("#disk").slider("value") * 1.60;
$("#diskamountUnit").val('$' + amount.toFixed(2));
You can also do that in one step, in the val
method call but IMO the first way is more readable:
$("#diskamountUnit").val('$' + ($("#disk").slider("value") * 1.60).toFixed(2));
Here is a working example in both Javascript and jQuery:
http://jsfiddle.net/GuLYN/312/
//In jQuery
$("#calculate").click(function() {
var num = parseFloat($("#textbox").val());
var new_num = $("#textbox").val(num.toFixed(2));
});
// In javascript
document.getElementById('calculate').onclick = function() {
var num = parseFloat(document.getElementById('textbox').value);
var new_num = num.toFixed(2);
document.getElementById('textbox').value = new_num;
};
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