JavaScript Number toFixed()

let num = 5.56789;
let n = num.toFixed();

let num = 5.56789;
let n = num.toFixed(2);

More examples below

Description

The toFixed() method converts a number to a string.

The toFixed() method rounds the string to a specified number of decimals.

If the number of decimals are higher than in the number, zeros are added.

number.toFixed( x)

Parameter	Description
x	Optional. Number of decimals. Default is 0 (no decimals)

Type	Description
A string	The representation of a number with (or without) decimals.

Round to 10 decimals

let num = 5.56789;
let n = num.toFixed(10);

toFixed() is an ECMAScript3 (ES3) feature.

ES3 (JavaScript 1999) is fully supported in all browsers:


Chrome	Edge	Firefox	Safari	Opera	IE
Yes	Yes	Yes	Yes	Yes	Yes