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Showing content from https://webplatform.github.io/docs/javascript/Number/toFixed below:

toFixed · WebPlatform Docs

toFixed Summary

The toFixed() method formats a number to fixed-point notation (decimal).

Syntax

toFixed([ fractionDigits ])

fractionDigits: Optional. The number of digits after the decimal point. Must be in the range 0 - 20, inclusive. Defaults to 0.

Return Value

Returns a string representation of a number in fixed-point notation, containing fractionDigits digits after the decimal point.

If fractionDigits is not supplied or undefined , the default value is 0.

Examples

Using toFixed to format the decimal presentation of a number.

var pie = 3.14159;


pie.toFixed(0);



pie.toFixed(4);



pie.toFixed(10);



(1.23e+20).toFixed(2);

(1.23e-10).toFixed(2);



-3.1415.toFixed(2);

(-3.1415).toFixed(2);

Remarks Throws

RangeError when a fractionDigits outside the bounds of 0 - 20 (inclusive) was given.

Notes

toFixed(3.9) will be treated as toFixed(3).
If number is greater than 1e+21, toFixed() calls toString() internally and returns a string in exponential notation.