Number of decimal places of a number that converts to string

[sunman4008]

Hello,

I have converting a number in EFS to string like the closing price. How to I make sure it only shows 2 decimal places?

-Mike

[waynecd]

Hi,

I often use the following function placed outside of main() and called anywhere using:

rnd(number, decimal places);


/// example start ///
var x=54.940003324868;
debugPrintln(rnd(x,2)+"\t"+Math.round(x));
/// example end ///


function rnd(value, N) {//N = round to N # of digits
if(N==null || typeof N=="undefined") N=Dec_Len(tick);
var n;
var mult=1;
for(n=0;n<N;n++) mult*=10;
value*=mult;
return Math.round( value,N)/mult;
}

Wayne

[waynecd]

You can also use toFixed(# of digits). It rounds to the "# of digits" and returns a string.

Syntax: close(0).toFixed(2);

You can convert it back to a number by multiplying the value times 1:

var valueTxt= close(0).toFixed(2);//assigns close(0) rounded to 2 digits as text to valueTxt
var valueNum=valueTxt*1;//assigns valueTxt to valueNum as a number


Wayne