How to Round Numbers in JavaScript
JavaScript round number to 2 decimal places
In this blog post I will demonstrate how to use javascript round function. Find the below javascipt code snippet :-
<script type="text/javascript">
// Function for round the number
function roundNumber(num,
dec) {
var result
= Math.round(num * Math.pow(10, dec)) / Math.pow(10, dec) + '';
var r =
result.indexOf('.');
return result;
}
</script>
 |
| rounding numbers calculator |
Default.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD
XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>How to
Round the Number to Decimal in JavaScript Function - An Example</title>
// Function
for round the number
function roundNumber(num, dec) {
var result = Math.round(num * Math.pow(10,
dec)) / Math.pow(10, dec) + '';
var r = result.indexOf('.');
return result;
}
// Calling
function
function RoundOfNumber()
{
var num=document.getElementById("txtInputNo").value;
var dec =document.getElementById("txtInputDec").value;
alert(roundNumber(num,dec));
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
Enter a Number:-
<input type="text" id="txtInputNo" />
Round to Decimal :-
<input type="text" id="txtInputDec" />
<br />
<br />
<a href="#" onclick="RoundOfNumber();">Click here to Round
the Number</a>
</div>
</form>
</body>
</html>
How to Round Numbers in JavaScript
Reviewed by Ravi Kumar
on
4:50 PM
Rating:
Reviewed by Ravi Kumar
on
4:50 PM
Rating:
Ravi Kumar
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