What does page() do?

Question

In the first example on https://visionmedia.github.io/page.js/...

page('/', index)
page('/user/:user', show)
page('/user/:user/edit', edit)
page('/user/:user/album', album)
page('/user/:user/album/sort', sort)
page('*', notfound)
page() // what does this do?

Answer 1

page() is equivalent to page.start().

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