Output to 2 Decimal Points 1

[FAM]

I have the following code which calculates an output based on a select box and outputs to html via

<b id='BaconBaguettesTotal'></b>

the problem is that it only outputs to 1 decimal place and i would like it output to 2 decimal places i.e. .00 , the function is given below

	function ddd(){	
		var d=document.getElementById("d")
		document.getElementById("BaconBaguettesTotal").innerHTML = d.options[d.selectedIndex].value * 1.80
	}

I have tried toFixed and toPrecision but to no avail due to lack of js experience.

Any suggestions?
Thanks

 

[Isadore]

You might try this approach (just a hunch):

y = y.toDec(2);

 

[trollacious]

toFixed(numdecimalplaces) should work fine

document.getElementById("BaconBaguettesTotal").innerHTML = (d.options[d.selectedIndex].value * 1.80).toFixed(2);

Lee

 

[FAM]

Thanks Lee

 

[wray]

Pre 2.0 Safari doesn't recognize .toFixed() and quietly dies in response. Since toFixed() is the *perfect* solution for this problem you can use prototyping to insert manual formatting in those cases where toFixed() is not supported.

if ( !Number.prototype.toFixed ) {
  Number.prototype.toFixed = function( decimals ) {
// default to two decimal digits
    var decDigits = ( isNaN(decimals) ) ? 2 : decimals;
    var k         = Math.pow( 10, decDigits );
    var fixedNum  = Math.round( parseFloat(this) * k ) / k;
    var sFixedNum = new String( fixedNum );
    var aFixedNum = sFixedNum.split( "." );
    var i         = ( aFixedNum[1] ) ? aFixedNum[1].length : 0;
// append decimal point if needed
    if ( (i == 0) && (decDigits) ) { sFixedNum += "."; }
// append zeros if needed
    while ( i < decDigits ) {
      sFixedNum += "0";
      i++;
      }
    return sFixedNum;
  }
}