Kirupa.com - Rounding Numbers in JavaScript

programming
1

by kirupa | 24 December 2012

Have questions? Discuss this HTML5 / JavaScript tutorial with others on the forums.

This is a companion discussion topic for the original entry at http://www.kirupa.com/html5/rounding_numbers_in_javascript.htm
2

It’s a nice post about rounding.
But for display you could simply use Number.prototype.toFixed.
So for example you will do:

Math.PI.toFixed(4); // '3.1416'
(8.1234).toFixed(2); // '8.12'
'$' + (2.5).toFixed(2); // '$2.50'

I mention display since it returns a string.
Nice for currency since it will add zeros.

1 Like
3

Wow - I had no idea about that function. I’ll revise this article to mention that :smile: