regex - Find base name in URL in Javascript

Question

I want to extract the base name from a image URL in Javascript. Would somebody care to give me a a hand on the Regex?

The rule would be:

• return everything right of the last / left of the last .

  www.domain.com/images/image.hires.jpg

• if no . is found, return the full base name www.domain.com/images/image_hi_res

I have a clumsy //[^.]+.[^.]+$/ but don't know how to make the / and the . optional and how to seek for the last . only.

Cheers folks for all the great input, as always. I chose the one Regex that worked for me out of the box.

Answer 1

Yet another solution:

url.replace(/^.*/|.[^.]*$/g, '')