Cocos2d-js label line space settings

Hi, I was wondering if it would be possible to get and set the vertical spacing between lines in a label.

I’ve noticed that some fonts are displayed with barely any spacing between lines - it would be nice if there was a way to manually set and get the value.

(Assuming you’re talking about TTF, not BM fonts)
I’ve used -x much more than -js, but wasn’t able to find much in the way of vertical spacing customizability in code. I ended up changing the font, as I describe here: http://devdiary.arcticempire.ca/2014/05/02/dev-diary-31-cocos2d-x-ttf-line-spacing/