JavaScript toFixed () method

Definition and usage
The ToFixed () method rounds numbers to a number that specifies the number of decimal digits.

Grammar
Numberobject.tofixed (num)

Parameter description
Num required. Specifies the number of decimal places, which are values between 0 and 20, including 0 and 20, and some implementations can support a larger range of values. If this argument is omitted, 0 will be used instead.

return value
Returns a string representation of numberobject, with no exponential notation, and a fixed num digit number after the decimal point. If necessary, the number is rounded, or it can be topped with 0 so that it reaches the specified length. If NUM is greater than le+21, the method only calls Numberobject.tostring () and returns the string represented by exponential notation.

Thrown
Throws an exception rangeerror when NUM is too small or too large. A value between 0 and 20 does not throw the exception. Some implementations support values in a larger range or a smaller range.
The TypeError exception is thrown when the object calling the method is not number.

Instance
In this example, we will round the number to a number with only one decimal:
Show the number 13.37 with one decimal:
<script type= "Text/javascript" >
var num = new number (13.37);
document.write (num.tofixed (1))
</script>
Output:
Show the number 13.37 with one decimal:
13.4

JavaScript toFixed () method