parseFloat and two decimal places

Tarbuza · Jan 31, 2003

I have the following code which works fine but it's giving me the result either without decimal places or if it is with a decimal place then it is showing up only character. For instance, 1250.5 instead of 1250.50.

Code is as follows. Any help would be greatly appreciated.

var f=document.forms[0];
f.Total.value=0;
f.Balance.value=0;
for(x=0;x<3;x++)
{
f.Total.value=parseFloat(f.TotalCharges(x).value,10)+parseFloat(f.Total.value);
f.Balance.value=parseFloat(f.BalanceDue(x).value,10)+parseFloat(f.Balance.value);
}
</script>

rac2 · Jan 31, 2003

Well you must do it yourself. here is a function to produce the number of decimal places you want.

Code:

//usage
//var x = (roundDecimal(parseFloat(f.Total.value), 2))

function roundDecimal(nNumber, nDecimals) {
	var tenToPower;
	var newNumber;
	var numPad = 0;
	var curDecimal;
	var locDecimal;
	var i;

	// round the number
	tenToPower = Math.pow(10, nDecimals);
	newNumber = String((Math.round(nNumber * tenToPower) / tenToPower));
	
	if (nDecimals > 0) {
		// see if we need to pad with 0's
		locDecimal = newNumber.indexOf(&quot;.&quot;);
		if (locDecimal == -1) {
			// no decimal at all
			newNumber += &quot;.&quot;;
			numPad = nDecimals
		} else {
			// how much padding do we need?
			curDecimal = (newNumber.length - locDecimal) - 1;
			if (curDecimal < nDecimals) {
				numPad = nDecimals - curDecimal;
			}
		}

		// pad the end with 0's
		for (i = 0; i < numPad; i++) {
			newNumber += &quot;0&quot;;		
		}
	}

	return newNumber;
}

Tarbuza · Jan 31, 2003

Thanks a lot.

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parseFloat and two decimal places

Tarbuza

Technical User

rac2

Programmer

Tarbuza

Technical User

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