two decimal places

[fireburst]

Hi,

I am new to javascript and I am attempting to output to two decimal places as its currency.

As an example it currently outputs as 127.1 instead of 127.10.

Can anyone look at the snippet of code and show me how please?

function fixNums(value)
{

var raise = Math.pow(10,2);



value = Math.round(value * raise) / raise;
return value;

}



function calcCost(frm)
{

var totalArea = ((frm.area1width.value * frm.area1length.value);

var totalCostSand = totalArea * sandCost;

frm.totalCostSand.value =fixNums(totalCostSand);
}


<p style="text-align: right;">cost for sanding £
<input name="totalCostSand" type="text" class="input" style="width: 50px;" readonly="readonly" />
</p>


thanks

[mrhoo]

use number.toFixed(decimals)

function calcCost(frm){
    var totalCostSand=  frm.area1width.value*frm.area1length.value*sandCost;
    frm.totalCostSand.value= totalCostSand.toFixed(2);
}

[fireburst]

many thanks

[jamesbcox1980]

Important note: number.toFixed(decimal places | integer) returns a string.

[fireburst]

Important note: number.toFixed(decimal places | integer) returns a string.

Ah so if I wanted to pass the result to a shopping cart then it could cause me problems then?

[mrhoo]

You are using the string as a form field value-all form field values are strings.
The server (presumably) will convert it to a number.

[fireburst]

Thanks for clearing that up

[jamesbcox1980]

Yeah you should be fine. mrhoo said it best. I just wanted you to keep that in mind in case you decided to use it in math somewhere else. I remember running into an issue with that along time ago thinking that it returned a number as a se point variable.

[fireburst]

thanks for the heads up