Question

Possible Duplicate:
Truncate Decimal number not Round Off in jquery

I have values like 5.3777777, 4.6666666 on my Y variable.

How can I truncate it so it shows 5.3 or 5.6 instead with JavaScript?

Thanks in advance!

Answer 1

The standard way to do this in any language is to multiple the value by the inverse of the precision required, truncate, and then divide again:

var truncated = Math.floor(val * 10) / 10;

If you want strict rounding rather than truncation then Javascript also has Number.toFixed() built-in which does this for you.