Math.floor() Method - Math Functions
Math.floor() method of Math Functions in Javascript.
How to Round off to the lower value of a number in javascript?
Explanation
Object: Math
Method: Math.floor()
Description:To get the number rounded to the immediate lower value. The below example will round off a positve or a negative number to the lower value using math functions.
<script type="text/javascript">
document.write('Floor value of .50 is::'+Math.floor(.50) + "<br/>");
document.write('Floor value of 2.6 is::'+Math.floor(2.6) + "<br/>");
document.write('Floor value of -2.1 is::'+Math.floor(-2.1));
</script>
In the above example,
Method: Math.floor()
Description:To get the number rounded to the immediate lower value. The below example will round off a positve or a negative number to the lower value using math functions.
Example:
<script type="text/javascript">
document.write('Floor value of .50 is::'+Math.floor(.50) + "<br/>");
document.write('Floor value of 2.6 is::'+Math.floor(2.6) + "<br/>");
document.write('Floor value of -2.1 is::'+Math.floor(-2.1));
</script>
Result:
In the above example,
- Math.floor() method is used to round off the numbers to next lower values.
- So for the value .50 it returns 0, 2.6 returns 2.
- For a negative number -2.1 Math.floor() method returns -3.
