using math.floor? - Javascript

hey guys, im stuck with this math.floor function. i know im supposed to use it for what im trying to do, but i dont know how to implement it. im supposed to subtract off 13.95 for every fifth suit. For example, if 5 suits are dropped off you will only charge for 4. For 7 suits you will charge for 6. For 12 suits you will charge for 10. Think about how to use the Math.floor function to compute the number of suits cleaned for free. Try to answer this question and that might help you. How many suits would be cleaned for free if 1000 or 1001 or 1002 suits were dropped off? its for a school project and i cant figure it out... any help would be awesome!!

evan

Nov 2 '06 #1

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1521

RamananKalirajan

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512MB

Hello Friend I give a code for your requirement this may be helpful for you. Inorder to calculate the amount I had specified the amount, you just give your desirted value for amount. post back me if you have any doubts or any assisstance.

[HTML]<html>
<head>
<script language="javascript">
function calculateThis()
{
var suit = document.getElementById('txtBox').value;
var totSuit = parseInt(suit);
if(totSuit>4)
var lessSuit = totSuit/5;
else
var lessSuit = 0;
lessSuit = Math.floor(lessSuit);
var paySuit = totSuit - lessSuit;
var amount = paySuit * 50; //Here I have fixed the amount for a suit is 50
alert(amount);
}
</script>
</head>
<body>
<br/>
Enter the total Suits : &nbsp&nbsp&nbsp&nbsp
<input type="text" id="txtBox">
<br/><br/>
<input type="button" value="Calculate the Amount" onclick="calculateThis()">
</body>
</html>[/HTML]

Regards
Ramanan Kalirajan

Mar 18 '08 #2

gits

5,390

Expert Mod 4TB

hi ...

just to mention that the following lines will give you a 'strict' warning for a redeclaration of var lessSuit:

Expand|Select|Wrap|Line Numbers

 if(totSuit>4)

          var lessSuit = totSuit/5;

     else

           var lessSuit = 0;

there are two ways around such constructs:

Expand|Select|Wrap|Line Numbers

 // 1 way ... init the var with 0

var lessSuit = 0;
 
if (totSuit>4) {

    lessSuit = totSuit/5;

}
 
// 2 way ... using the conditional operator

var lessSuit = totSuit > 4 ? totSuit/5 : 0;

kind regards

Mar 18 '08 #3

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