ruby on rails - Definition of a named route in RoR? -


i see plenty of examples of named routes on web, i'm having trouble finding , why called named routes. halp.

named routes provide helper methods generating paths specific route. when define named route, 2 helper methods: name_path , name_url.

the difference between 2 name_url full url protocol, domain name , port.

example: 

name_path -> /test name_url -> http://localhost:3000:/test

so can see benefit when need reference these paths can use names instead of spelling out full route path.

in following example 1 rather type?

<%= link_to "test", name_url %>

or 

<%= link_to "test", "http://localhost:3000/test" %>

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