How to get just numeric part of CSS property with jQuery?

Question

I need to do a numeric calculation based on CSS properties. However, when I use this to get info:

$(this).css(\'marginBottom\')

it returns

Answer 1

parseint will truncate any decimal values (e.g. 1.5em gives 1).

Try a replace function with regex e.g.

$this.css('marginBottom').replace(/([\d.]+)(px|pt|em|%)/,'$1');