javascript - Converting an absolute path to a relative path -

working in node need convert request path relative path can drop templates have different folder structure.

basically if start path "/foo/bar" need relative path ".." if it's "/foo/bar/baz" need "../.."

i wrote pair of functions this:

function splitpath(path) {     return path.split('/').map(dots).slice(2).join('/'); }  function dots() {     return '..'; }

not sure if best approach or if it's possible regular expression in string.replace somehow?

edit

i should point out can render static html, zip whole project, , send doesn't have access web server. see first comment.

if understand question correct can use path.relative(from, to)

example:

var path = require('path'); console.log(path.relative('/foo/bar/baz', '/foo'));

CSS