JavaScript toFixed() Method

toFixed()The method uses fixed-point notation to format numbers.

If necessary, numbers will be rounded, and if necessary, the decimal part will be filled with zeros to have the specified length.

Grammar:

number.toFixed(digits)

Example

var num =　12345.6789;
num.toFixed(2);

All browsers fully support the toFixed() method:

Method
toFixed()	Is	Is	Is	Is	Is

Parameter	Description
digits	(Optional) the number of digits that appear after the decimal point; this may be a 0 to2values between 0 and, and the implementation may support larger ranges of values. If this parameter is omitted, it will be considered as 0

Return value:	Represent the string of the given number in fixed-point notation
Exception cases:	RangeError-If the number is too small or too large. Between 0 and10between 0 (including 0 and10The value of (0) will not cause a RangeError TypeError-If this method is called on a non-Number object
JavaScript Version:	ECMAScript 3

Convert numbers without retaining any decimal places:

Example

var num =　12345.6789;
num.toFixed();

If necessary, pad the decimal part with zeros:

Example

var num =　12345.6789;
num.toFixed(10);