round() – rounds a number up if decimal part is >= .5, else rounds down
ceil() - rounds a number up to the nearest whole number and removes decimal
floor() – rounds a number down to the nearest whole number and removes decimal
Here’s an example:
<html xmlns="http://www.w3.org/1999/xhtml" > <head> <title>Math Rounding</title> </head> <body> <script type="text/javascript">
function callRounding(num) {
document.write("Original value: " + num + "</br>");
document.write("Using round(): " + Math.round(num) + "</br>");
document.write("Using ceil(): " + Math.ceil(num) + "</br>");
document.write("Using floor(): " + Math.floor(num) + "</br>");
}
document.write("Original value: " + num + "</br>");
document.write("Using round(): " + Math.round(num) + "</br>");
document.write("Using ceil(): " + Math.ceil(num) + "</br>");
document.write("Using floor(): " + Math.floor(num) + "</br>");
}
</script> <input id="btn1" type="button" value="Example 1" onClick="callRounding(2.12)" /> <input id="btn2" type="button" value="Example 2" onClick="callRounding(2.62)" /> <input id="btn3" type="button" value="Example 3" onClick="callRounding(-2.62)" /> </body> </html>
hope it help u someway's...
Have a nice day... 'N happy Coding :)
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