How to remove the string concerned from the original string

Questions & Help Questions
1

Hello, I have a string which is my Url, the string is:

125-1jump-test-for12-test

now I want to remove 125- from the string by this regex

  def get_number_of_url(url_string) do
    Regex.match?(~r/^(\d+)/, "#{url_string}")
  end

20%20pm
20%20pm1037×384 26 KB

I need it to be without number before - DASH, how can I edit this, I want to remove the string which the regex finds and first DASH after that ?

for example:

1jump-test-for12-test

if there are 2 125-, how will I do ? like this:

125-1jump-test-for12-test-125-