npm-version template
docs
0{
substring-before(substring-after(substring($url, string-length(substring-before($url, '/')) -
string-length(substring-before(substring-before($url, '/'), '@0')) + 2), '@0'), '/')
}
{ concat( substring-before($url, $url-version),
//selected-version,
substring-after($url, $url-version) ) }
location.href