Javascript Regular Expressions - Replace non-numeric characters

Question

This works:

var.replace(/[^0-9]+/g, \'\');  

That simple snippet will replace anything that is not a number with nothing.

But decimals

Answer 1

If you don't want to catch IP address along with decimals:

var.replace(/[^0-9]+\\.?[0-9]*/g, '');

Which will only catch numerals with one or zero periods