Solved

rounding number to two decimal places not working

Posted on 2011-09-16
6
387 Views
Last Modified: 2012-05-12
In the attached code, based on values on my screen, the variable is spitting out:

286.88524590163934

I've searched extensively on the web for this, everyone says just put a toFixed(2) at the end, but it isn't working for me, for some reason.

Thank you!
var weight2a=((parseFloat($('#weight1b').val())*3500))/parseInt(days_between(weight2aBeginDate, weight2aEndDate)).toFixed(2);

Open in new window

0
Comment
Question by:bbdesign
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
  • 2
6 Comments
 
LVL 82

Accepted Solution

by:
leakim971 earned 350 total points
ID: 36550949
it work of course : http://jsfiddle.net/4pMJR/

if you see a different value, it's because :
- you do'nt use the right variable
or :
- you change it somewhere else (client or server side)
or :
- you display value of the variable with a function doing a bad job
0
 
LVL 40

Assisted Solution

by:gurvinder372
gurvinder372 earned 150 total points
ID: 36550957
it should be, since below one is working for me

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
      <script>
            var float1 = 1213212.12312;
            alert(float1);
            alert(float1.toFixed(2));
      </script>
</HEAD>

<BODY>
      
</BODY>
</HTML>


0
 

Author Comment

by:bbdesign
ID: 36551037
My entire function is attached. Here is where weight2b is calculated and then displayed inside a text box:

var weight2b=(5*(parseFloat($('#user_weight').val())/150)*6.33).toFixed(2);
$('#weight2b').val(weight2b);

It is used in calculating weight2d a few lines later, but it shouldn't be modified by that statement (I don't think).

As far as I can tell, I am using the correct variable. This is all happening on the client side, no server side. Is there something about how I am putting the value in the text box that is incorrect?
$('#weight1d').click(function(){
	if ($('#weight1a').val().length>0 && $('#weight1b').val().length>0){
		if (isNumber($('#weight1a').val()) && isNumber($('#weight1b').val())){
			$('#weight1a').removeClass('redbg');
			$('#weight1b').removeClass('redbg');
			var weight2aStartDate=Date.parseExact($('#startdate option:selected').val(), 'M/d/yyyy');
			var weight2aBeginDate=Date.parseExact($('#startdate option:selected').val(), 'M/d/yyyy');
			var weight2aTerm=parseInt($('#term').val());
			var weight2aEndDate=weight2aStartDate.addMonths(weight2aTerm);
			var weight2a=((parseFloat($('#weight1b').val())*3500)/parseInt(days_between(weight2aBeginDate, weight2aEndDate))).toFixed(2);
			$('#weight2a').val(weight2a);
			var weight2b=(5*(parseFloat($('#user_weight').val())/150)*6.33).toFixed(2);
			$('#weight2b').val(weight2b);
			var weight2c=(weight2a/((parseFloat($('#user_weight').val())/150)*6.33)).toFixed(0);
			$('#weight2c').val(weight2c);
			var weight2d=((6.33*weight2c)-weight2b).toFixed(0);
			if (weight2d<0){weight2d=0;}
			$('#weight2d').val(weight2d);
			savedata();
			$('#weightlosscalculator').animate({'backgroundColor':'#ffff66'}, 50);
			$('#weightlosscalculator').delay(200).animate({'backgroundColor':'#ffffff'}, 750);
		} else {
			if (isNumber($('#weight1a').val())==false){$('#weight1a').addClass('redbg');}
			if (isNumber($('#weight1b').val())==false){$('#weight1b').addClass('redbg');}
		}
	} else {
		if ($('#weight1a').val().length==0){$('#weight1a').addClass('redbg');}
		if ($('#weight1b').val().length==0){$('#weight1b').addClass('redbg');}
	}
});

Open in new window

0
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 82

Expert Comment

by:leakim971
ID: 36551056
replace line 11 by : $('#weight2a').val(weight2a);alert(  $('#weight2a').val() );

what do you see in the alert box?

0
 

Author Comment

by:bbdesign
ID: 36551069
Strangely enough, now it is working. I have no idea what I was doing wrong, or what I did to fix it, but now all my values are coming out right. Thanks for helping!
0
 
LVL 40

Expert Comment

by:gurvinder372
ID: 36551074
can you divide it into

var userWeight = parseFloat($('#user_weight').val());
alert(userWeight);
var weight2b=(userWeight /150)*6.33*5;
alert(weight2b);
var weight2bFixed = weight2b.toFixed(2);
alert(weight2bFixed);
$('#weight2b').val(weight2b);

let me know what is the alert values
0

Featured Post

Raise the IQ of Your IT Alerts

From IT major incidents to manufacturing line slowdowns, every business process generates insights that need to reach the people required to take action. You need a platform that integrates with your business tools to create fully enabled DevOps toolchains.

You need xMatters.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

There are a couple ways to attach a JavaScript function to dynamically created elements. You can make a new script for each element as it’s created or you can use delegation. Delegation allows a single script that is added at page creation to mat…
How to build a simple, quick and effective accordion menu using just 15 lines of jQuery and 2 css classes
The viewer will learn how to dynamically set the form action using jQuery.
The viewer will learn the basics of jQuery, including how to invoke it on a web page. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery.: (CODE)

695 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question