JavaScript - Comparing Decimal Numbers

Hello all,

How to set decimal point in javascript ?
e.g.

var num1=23.12345;

I want output as 23.12

How can i do this ?

Please, guide me.

Thanks

I have a mortgage calc that is adding an extra decimal place to my interest rate. To see this in action go to:

http://www.keithknowles.com/elmtree/mortgagecalc2.htm
Change the interest rate to 7.5
Click Calculate Payment
Click Create Amortization Chart

On the following screen you'll see a recap of your data and the interest rate will now say 7.55. Same thing happens if you enter 6.2. Next screen shows 6.22/

I've attached the html and js files in a zip.

Any help is greatly appreciated.

Thanks.

Hi All,

Im currently working on a bidding application built within ASP.Net and i have found this javascript snippet to only allow numeric values in the desired <asp:textbox> which is working fine, but i want to allow the user to add a decimal place.

For example, say the bid is 1.50 they should be allowed to enter 1.51 but as i cant imput (.) i end up putting in 151 heres the snippet it may be a slight modification but im new to javascript so any help of knowledge will be highly appreciated

Code:

   function isNumberKey(evt) 
{
       var charCode = (evt.which) ? evt.which : event.keyCode
       if (charCode > 31 && (charCode < 48 || charCode > 57))
           return false;

       return true;
   }

thanks in advance

Hi..

I have javascript code with computation, but I have problem in my result because it was not round off or fixed into two decimal places only.

here is my code:

Code:

<script type="text/javascript">

function test_(cmpd) {
    var len_ = (document.frmMain.elements.length) - 1;
  
     for (i=0; i <= len_; i++ ) {   
    
       var strPos_ = document.frmMain.elements[i].id.indexOf(cmpd)
         
   
              if (strPos_ != -1) {
              var strPos = document.frmMain.elements[i].id.indexOf("_");
              
var strId = document.frmMain.elements[i].id.slice(strPos + 1) + "_" + document.frmMain.elements[i].id.slice(0,strPos)               
     // this is the computation that I need to fixed the result into two decimal places
    document.frmMain.elements[i].value = document.getElementById(strId).value * document.getElementById('mult').value;  
     } 
    }  
}
</script>

Thank you so much

I am having an issue with converting my decimal to a percentage... any suggestions? Thanks - it's probably an easy solution, but I am lost


below is my code (cost * .06) is where the issue is - Thanks!





var cost = prompt("What is the cost of your purchase?", "")
document.write("Return Value: "+cost,("<br />"));
var salestax = cost * .06
document.write("Return Value: "+salestax,("<br />"));
var total = cost + salestax
document.write(cost + salestax);

This script is for car loan payments. I need a R simbol only before the monthly payment and only two figures after the decimal point. Can somebody pse help me with this. Thank you in advance.
Kees Meyer (keesmarcha)

<script language="JavaScript">
<!--
function showpay() {
if ((document.calc.loan.value == null || document.calc.loan.value.length == 0) ||
(document.calc.months.value == null || document.calc.months.value.length == 0)
||
(document.calc.rate.value == null || document.calc.rate.value.length == 0))
{ document.calc.pay.value = "Incomplete data";
}
else
{
var princ = document.calc.loan.value;
var term = document.calc.months.value;
var intr = document.calc.rate.value / 1200;
document.calc.pay.value = princ * intr / (1 - (Math.pow(1/(1 + intr), term)));
}

// payment = principle * monthly interest/(1 - (1/(1+MonthlyInterest)*Months))

}

// -->
</script>

The results of this loan payment calculator are for comparison purposes only.
They will be a close approximation of actual loan
repayments if available at the terms entered, from a financial institution. This
is being
provided for you to plan your next loan application. To use, enter values
for the
Loan Amount, Number of Months for Loan, and the Interest Rate (e.g.
7.25), and
click the Calculate button. Clicking the Reset button will clear entered
values.
<p>
<center>
<form name=calc method=POST>
<table width=60% border=0>
<tr><th bgcolor="#aaaaaa" width=50%><font color=blue>Description</font></th>
<th bgcolor="#aaaaaa" width=50%><font color=blue>Data Entry</font></th></tr>
<tr><td bgcolor="#eeeee">Loan Amount</td><td bgcolor="#aaeeaa" align=right><input
type=text name=loan
size=10></td></tr>
<tr><td bgcolor="#eeeee">Loan Length in Months</td><td bgcolor="#aaeeaa"
align=right><input type=text
name=months size=10></td></tr>
<tr><td bgcolor="#eeeee">Interest Rate</td><td bgcolor="#aaeeaa" align=right><input
type=text name=rate
size=10></td></tr>
<tr><td bgcolor="#eeeee">Monthly Payment</td><td bgcolor="#eeaaaa"
align=right><em>Calculated</em> <input
type=text name=pay size=10></td></tr>
<tr><td bgcolor="#aaeeaa"align=center><input type=button onClick='showpay()'
value=Calculate></td><td bgcolor="#eeeeaa" align=center><input type=reset
value=Reset></td></tr>
</table>
</form>
<font size=1>Enter only numeric values (no commas), using decimal points
where needed.<br>
Non-numeric values will cause errors.</font>
</center>

<p align="center"><font face="arial" size="-2">This free script provided by</font><br>
<font face="arial, helvetica" size="-2"><a href="http://javascriptkit.com">JavaScript
Kit</a></font></p>

Hello all,

i'm looking for a way to check if the name of the page is equal to a link inside the page being checked. for instance:

inside the address bar: http://www.mysite.test.html


<body>
<ul>
<li><a href="test.html"></a></li>
<li><a href="test1.html"></a></li>
<li><a href="test2.html"></a></li>
<li><a href="test3.html"></a></li>
</body>

please advise.

thanks,

jav

Hello

I'm trying to compare two values and return with an answer, 2 if Value 1 is greater than Value 2, 0 if Value 2 is greater than value 1 and 1 if the two values are equal.

I have a script which does this when the Compare Button is selected, however I would like to remove the button so the answer is generated when the Values ae entered

The script is

[CODE]
<html>
<head>
<script type="text/javascript">
<!--
function resultH1()
{
var str1 = document.getElementById("TotalH1").value;
var str2 = document.getElementById("TotalA1").value;
if(str1 != str2)
{
if(str1 < str2)
{
document.getElementById("ans").value= "2";
}
else
{
document.getElementById("ans").value= "0";
}
}
else
{
document.getElementById("ans").value= "1";
}
}
// -->
</script>
</head>
<body>
<form name = "clock" action = "">
<table border = "1">
<caption>Compare</caption>
<tr><td>Value 1</td>
<td><input name = "TotalH1" type = "text" />
</td></tr>
<tr><td>Value 2</td>
<td><input name = "TotalA1" type = "text" />
</td></tr>
<tr><td>Answer</td>
<td><input type=text name="ans" size="3" readonly="readonly" style="background:silver">
</td></tr>
<tr><td><input type = "button" value = "Compare"
onclick = "resultH1()" /></td></tr>
</table>
</form>
</body>
</html>
[ICODE]

Can anyone advise what I need to do to remove the button

Thanks

I need to write a script that will search for a style attribute that matches "top: 10px;".
If a match is found, it will then edit the value of that input box to "hello".

So for example a webpage has:
Code:

<input style="top: 1px;" maxlength="20" type="text">
<input style="top: 100px;" maxlength="20" type="text">
<input style="top: 10px;" maxlength="20" type="text">

The script would edit the value of the 3rd one to "hello".

I'm a beginner to javascript so my code may not make sense but bear with me please.

Code:

var styles = document.getElementsByTagName("input").attributes.getNamedItem("Style")

for (var i = 0; i < styles.length; ++i){
	if (styles.value == "top: 179px; left: 348px; width: 222px;"){styles.value="hello"}
	}

I don't know if JavaScript is the best choice for this or maybe just Java but i want to create something were I can compare a list of names and their picks with a correct list. For example lets say this is the list of peoples picks...

Code:

   Dan Slota   New York Jets
   Dan Slota   Cincinnati Bengals
   Dan Slota   Pittsburgh Steelers
   Dan Slota   Denver Broncos
   Dan Slota   Green Bay Packers
   Dan Slota   Atlanta Falcons
   Dan Slota   New Orleans Saints
   Dan Slota   Seattle Seahawks
   Dan Slota   Indianapolis Colts
   Dan Slota   Houston Texans
   Dan Slota   Philadelphia Eagles
   Dan Slota   San Diego Chargers
   Dan Slota   Chicago Bears
   Dan Slota   New England Patriots

   Danielle rossi   New York Jets
   Danielle rossi   Cincinnati Bengals
   Danielle rossi   Baltimore Ravens
   Danielle rossi   Tennessee Titans
   Danielle rossi   Green Bay Packers
   Danielle rossi   Atlanta Falcons
   Danielle rossi   New Orleans Saints
   Danielle rossi   St. Louis Rams
   Danielle rossi   Indianapolis Colts
   Danielle rossi   Houston Texans
   Danielle rossi   Philadelphia Eagles
   Danielle rossi   San Diego Chargers
   Danielle rossi   Chicago Bears
   Danielle rossi   Miami Dolphins

   David Fleischer   New York Jets
   David Fleischer   Cincinnati Bengals
   David Fleischer   Baltimore Ravens
   David Fleischer   Denver Broncos
   David Fleischer   Green Bay Packers
   David Fleischer   Atlanta Falcons
   David Fleischer   New Orleans Saints
   David Fleischer   Seattle Seahawks
   David Fleischer   Indianapolis Colts
   David Fleischer   Oakland Raiders
   David Fleischer   Philadelphia Eagles
   David Fleischer   San Diego Chargers
   David Fleischer   New York Giants
   David Fleischer   Miami Dolphins

and here is the master list of the correct picks ...

Code:

   Master List   New York Jets
   Master List   Cleveland Browns
   Master List   Baltimore Ravens
   Master List   Tennessee Titans
   Master List   Green Bay Packers
   Master List   Atlanta Falcons
   Master List   New Orleans Saints
   Master List   Seattle Seahawks
   Master List   Indianapolis Colts
   Master List   Houston Texans
   Master List   Philadelphia Eagles
   Master List   San Diego Chargers
   Master List   New York Giants
   Master List   Miami Dolphins

After the user list is compared to the master list i need it to say the results of each user for example
Code:

David Fleischer 8 correct
Danielle Rossi 9 correct
Dan Slota 5 correct
.
.
Sam Adams 2 correct
[/CODE]

What would be a good way of doing this? Any help would be appreciated

Thanks.

Hi

I have the following script

Code:

function timeDifference(laterdate,earlierdate) {
    var difference = laterdate.getTime() - earlierdate.getTime();

    var daysDifference = Math.floor(difference/1000/60/60/24);
    difference -= daysDifference*1000*60*60*24

    document.write('difference = ' + daysDifference + ' day/s ');
}

var laterdate =  ? ;
var earlierdate =  ? ;

timeDifference(laterdate,earlierdate);
//--></script>

and would like to insert my datein and dateout values where the ? marks are above in red.

I can call these variables into the form on the page using <%=Request("datein")%> but how do I call a variable into the script above ?

Thanks

Problem
Part 1.
Gather data from linux server and output to a file named data_DDMMYY
Output file must contain the file name and size

Part 2.
Compare todays data_DDMMYY to yesterdays data_DDMMYY and output results to a file named difference_DDMMYY

Output file must show the difference in size between same named files and identify new and deleted files

Solution
Part 1.
Log into linux, use command "find . -daystart -ctime 0 -type f | xargs ls -sSh > data_DDMMYY"
Sample output:


Part 2.
Perhaps use of an array and iterator? (my knowledge is very limited when it comes to arrays and iterators)

Idea

Grab file 1, go to line 1, read first string and save to variable x, read second string and save to list2

Grab file 2, using the current line in list2, look for a match.

If a match is found, go to that line, read first string and save to variable y

Calculate difference of x-y and save to list1, output first line of list 1 and list 2 to difference_DDMMYY

If match is not found, output <string>.notFound to a new line in difference_DDMMYY

Grab file 1, go to line 2, read first string and save to x, read second string and save to new line in list 2

etc ... until all lines in file 1 have been used.

Then somehow I'd like to find the lines in file 2 that weren't copied to a list and output them to the difference_DDMMYY as <String>.newFile

I'm sure there's some sort of for loop I can use to solve this, but as of right now I'm stumped and need ideas >.<

Any and all help is appreciated.

P.S. I'm new to programming, I'm not sure which language would be best to fix this problem

I am trying to develop a form that can give an estimate to viewers based on their input and I'm having a problem with decimal points.

I couldn't find a very good free script online so I've done some work with this one

http://www.mikeandzachsbbq.com/Catering/catering.htm

When you enter 10 in the input box, it calculate 10*19.99, giving 199.9, but I want it to show 199.90. I've tried adding toFixed(2) in there, but I'm not able to get that to work....any ideas?

Thanks in advance

I'm a bit confused as I'm just learning PHP/Java, and need to display a percentage. I successfully can display a percentage, however, the decimal like any calculate displays .00000012130 whatever sometimes. How can I round the output to the nearest 10s place?

<script language="javascript" type="text/javascript">
var a = "14";
var b = "25";
document.write(parseInt(a) / parseInt(b) * 100);
document.write("%");
</script>

This is the code I use, however, it needs to be modified so that it rounds to the nearest 10 instead of display a decimal.

Hello:

I have this js function:

Code:

<script type="text/javascript">
function updatesum() {
document.PaymentForm.newbalance.value = (document.PaymentForm.balance.value -0) - (document.PaymentForm.paymentamount.value -0);
}
</script>

I want to round the value of Code:

document.PaymentForm.newbalance.value

to two decimal points.

May I request some assistance!