String question

1

I think this has to do with string anyways, or length…

Say i have a function that calculates a nubmer, it outputs a dollar value, so i
lets say the output should be $1.40 , it would output $1.4, that looks a bit funny, so is there a way to check the length after the decimal, and if it’s only 1 char long, to add a 0?

2

Try this:

Number.prototype.toFixed = function (n) {
        var s = Math.round(this * Math.pow(10, n)).toString();
        return (s.substr(0, s.length - n)+"."+s.substr(s.length - n));
}
3

how would i work that into this:


	penT.restrict = "0-9";
	nicT.restrict = "0-9";
	dimT.restrict = "0-9";
	quaT.restrict = "0-9";

button1.onPress = function() {
	
	
	var pT = pennies.length ? pennies*.01 : _root.penT.text = 0;
	var nT = nickles.length ? nickles*.05 : _root.nicT.text = 0;;
	var dT = dimes.length ? dimes*.1 : _root.dimT.text = 0;
	var qT = quarters.length ? quarters*.25 : _root.quaT.text = 0;
	var tT = pT+nT+dT+qT
	
    
	total.text = "total: $"+tT;
	
}

i tried


	penT.restrict = "0-9";
	nicT.restrict = "0-9";
	dimT.restrict = "0-9";
	quaT.restrict = "0-9";

button1.onPress = function() {
	
	
	var pT = pennies.length ? pennies*.01 : _root.penT.text = 0;
	var nT = nickles.length ? nickles*.05 : _root.nicT.text = 0;;
	var dT = dimes.length ? dimes*.1 : _root.dimT.text = 0;
	var qT = quarters.length ? quarters*.25 : _root.quaT.text = 0;
	var tT = pT+nT+dT+qT
	
    var s = Math.round(tT * Math.pow(10, n)).toString();
    return (s.substr(0, s.length - n)+"."+s.substr(s.length - n));
    
	total.text = "total: $"+s;
	
}

but that is incorrect.

4 

	penT.restrict = "0-9";
	nicT.restrict = "0-9";
	dimT.restrict = "0-9";
	quaT.restrict = "0-9";

button1.onPress = function() {
	
	
	var pT = pennies.length ? pennies*.01 : _root.penT.text = 0;
	var nT = nickles.length ? nickles*.05 : _root.nicT.text = 0;;
	var dT = dimes.length ? dimes*.1 : _root.dimT.text = 0;
	var qT = quarters.length ? quarters*.25 : _root.quaT.text = 0;
	var tT = pT+nT+dT+qT
	n=2
    var s = Math.round(tT * Math.pow(10, n)).toString();
    s= (s.substr(0, s.length - n)+"."+s.substr(s.length - n));
    
	total.text = "total: $"+s;
	
}
5

thanks, i see what i did wrong :slight_smile:

6

You should take advantage of the fact it’s a prototype…

Number.prototype.toFixed = function (n) {
        var s = Math.round(this * Math.pow(10, n)).toString();
        return (s.substr(0, s.length - n)+"."+s.substr(s.length - n));
}

	penT.restrict = "0-9";
	nicT.restrict = "0-9";
	dimT.restrict = "0-9";
	quaT.restrict = "0-9";

button1.onPress = function() {
	
	
	var pT = pennies.length ? pennies*.01 : _root.penT.text = 0;
	var nT = nickles.length ? nickles*.05 : _root.nicT.text = 0;;
	var dT = dimes.length ? dimes*.1 : _root.dimT.text = 0;
	var qT = quarters.length ? quarters*.25 : _root.quaT.text = 0;
	var tT = pT+nT+dT+qT
    
	total.text = "total: $"+tT.toFixed(2);
}