Page 254 - Web_Application_v2.0_C12_Fb
P. 254
Method Name Description Example
min() Returns the smallest number document.write(Math.min(-15,
-10));
document.write(“<br>”+Math.min
(155, 132, 123, 13));
Output:
-15
13
ceil() Rounds a number up to document.write(Math.ceil(4.2));
the nearest integer. Output:
5
floor() Rounds a number down to document.write(Math.floor(4.8));
the nearest integer.
Output:
4
pow(x,y) Returns the value of x raised document.write(Math.pow(2, 3));
to the power of y.
Output:
8
sqrt() Returns the square root of a document.write(Math.sqrt(16));
number.
Output:
4
Example 57: To demonstrate the use of round() method
<!DOCTYPE HTML>
<HTML>
<HEAD>
<TITLE>JavaScript Round </TITLE>
</HEAD>
<SCRIPT>
function display() {
var num = 5.7;
var roundedNum = Math.round(num);
alert("Rounded number: " + roundedNum);
}
</SCRIPT>
</HEAD>
<BODY>
<INPUT type="button" onclick="display()" value="Generate Rounded Number">
</BODY>
</HTML>
252 Touchpad Web Applications (Ver. 2.0)-XII

