::String means explicit root namespace.
So if you have something like
module MyNamespace
class String
...
end
end
MyNamespace::String will be your own class, while ::String will still be
the original string class defined by Ruby. If you just type String, it'll
find the closest matching namespace, so if you call String.new from within
MyNamespace, it'll return MyNamespace::String, while if you call String.new
from outside MyNamespace, it'll call the default Ruby string. Writing
::String means you explicitly want the default Ruby string, even if you
call it from inside MyNamespace.
On Monday, July 14, 2014 11:12:01 PM UTC-7, Ruby-Forum.com User wrote:
>
> Hello all,
>
> What is significance of :: in ActiveRecord::Base.
>
> What is difference between ::String.new and String.new
>
>
> Thank you,
> Praveen
>
> --
> Posted via http://www.ruby-forum.com/.
>
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