Solved

Javascript Roun Up or Down a decimal

Posted on 2014-07-31
4
193 Views
Last Modified: 2014-07-31
How do I round up or down a decimal?  For example var myResult = 125.22545  and I wanted to round that up to two decimal points so it is 125.25?
<script>
	var result = document.getElementById('result');	
	var base = parseFloat(baseOne) * parseFloat(myBox1) * parseFloat(myBox5a);
	var myResult = parseFloat(base) + parseFloat(myBox2a) + parseFloat(myBox3a) + parseFloat(myBox4a);
	
	result.innerHTML = myResult;

</script>

Open in new window

0
Comment
Question by:rgranlund
  • 2
4 Comments
 
LVL 82

Accepted Solution

by:
leakim971 earned 250 total points
ID: 40232135
Line 6:
result.innerHTML = myResult.toFixed(2);

Open in new window

0
 
LVL 15

Expert Comment

by:Insoftservice
ID: 40232171
var myNum = Number(12.248481545454);

var myRounded = myNum.toFixed(2); // returns 12.25

alert(myRounded)
result.innerHTML = myRounded;
0
 
LVL 7

Author Comment

by:rgranlund
ID: 40232178
Does it round up and/or down depending?
0
 
LVL 15

Assisted Solution

by:Insoftservice
Insoftservice earned 100 total points
ID: 40232192
var original=28.453

1) //round "original" to two decimals
var result=Math.round(original*100)/100  //returns 28.45

2) // round "original" to 1 decimal
var result=Math.round(original*10)/10  //returns 28.5

3) //round 8.111111 to 3 decimals
var result=Math.round(8.111111*1000)/1000  //returns 8.111
0

Featured Post

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

Join & Write a Comment

Introduction A frequently asked question goes something like this:  "I am running a long process in the background and I want to alert my client when the process finishes.  How can I send a message to the browser?"  Unfortunately, the short answer …
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…
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)

706 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

Need Help in Real-Time?

Connect with top rated Experts

17 Experts available now in Live!

Get 1:1 Help Now