How does one get the height/width of an SVG group element?

Question

I need to know the width and height of a SVG element? Im trying to use the following:

$(\'g#myGroup\').height()

...but the result is alway

Answer 1

I wasn't able to get any of the answers above to work, but did come across this solution for finding it with d3:

var height = d3.select('#myGroup').select('svg').node().getBBox().height;
var width = d3.select('#myGroup').select('svg').node().getBBox().width;

getBBox() here will find the actual width and height of the group element. Easy as that.