Joins a url onto a path. One way of understanding this is that your File object represents your current location, and calling join() is analogous to "cd" on a command line.
new steal.File("d/e").join("../a/b/c"); // Yields the path "d/a/b/c"
steal.file.join(url) -> undefined
{String}
{undefined}
Joins a url onto a path. One way of understanding this is that your File object represents your current location, and calling join() is analogous to "cd" on a command line.