How Do I Limit the output to 2 decimals.

Question

1.44/5 (2 votes)

See more:

Here is my code. if you enter 12 / 88 you get 7.3333333333333333
I want any division to be only 2 decimals long but can't seem to find the correct way. I want to have the result in my TextBoxAvgTimeMedRec field.

XML

<script lang='text/javascript'>
  function Calculate()
  {
    if ( (document.getElementById('<%= TextBoxNumPatInt.ClientID%>').value != " ") && (document.getElementById('<%= TextBoxNumMinDoc.ClientID%>').value != " ") )
    {
        document.getElementById('<%= TextBoxAvgTimeMedRec.ClientID%>').value = parseFloat(document.getElementById('<%= TextBoxNumMinDoc.ClientID%>').value) / parseFloat(document.getElementById('<%= TextBoxNumPatInt.ClientID%>').value);
    }
  }
</script>

Posted 1-Oct-15 10:17am

Member 11598884

Add a Solution

3 solutions

Solution 2

You can either use Math.round or toFixed to limit decimal places. Here is the script:

C#

var a = 12;
var b = 88;
var c = a/b;
alert( Math.round(c * 100) / 100 );
alert(c.toFixed(2));

Posted 1-Oct-15 10:41am

Sreekanth Mothukuru

Updated 1-Oct-15 10:42am

v2

Comments

Krunal Rohit 2-Oct-15 0:35am

5!
-KR

Solution 1

User toFixed function for this:

parseFloat("12.344343").toFixed(2)

Posted 1-Oct-15 10:39am

Moykn

Comments

Krunal Rohit 2-Oct-15 0:35am

5!
-KR

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Palash Mondal_ · Accepted Answer · 2015-10-01T20:15:00

You can use .toFixed()[^] here to get the desired output and also use a generic function to reuse the code again like:

JavaScript

function Calculate() {
    var textBoxNumPatInt = document.getElementById('<%= TextBoxNumPatInt.ClientID%>').value;
    var textBoxNumMinDoc = document.getElementById('<%= TextBoxNumMinDoc.ClientID%>').value;

    if ((textBoxNumPatInt !== "") && (textBoxNumMinDoc !== "")) {
        var newValue = GetDecimalValue(textBoxNumMinDoc) / GetDecimalValue(textBoxNumPatInt);
        document.getElementById('<%= TextBoxAvgTimeMedRec.ClientID%>').value = GetDecimalValue(newValue);
    }
}

function GetDecimalValue(value) {
    return (value ? parseFloat(value).toFixed(2) : 0.00);
}

Hope this helps!