The Number toFixed() method

By Flavio Copes

Learn how the JavaScript Number toFixed() method returns a string with a number in fixed point notation, and how to set how many decimal digits to keep.

You can use this method to get a string representing the number in fixed point notation:

new Number(21.2).toFixed() //21

You can add an optional number setting the digits as a parameter:

new Number(21.2).toFixed(0) //21
new Number(21.2).toFixed(1) //21.2
new Number(21.2).toFixed(2) //21.20

Related posts about js: