namespace(arg=nil)
Instance Public methods
Returns the namespace URL, if defined, or nil otherwise
e = Element.new("el")
e.add_attributes({"xmlns:ns", "http://url"})
e.namespace( "ns" ) # -> "http://url"Returns the namespace URL, if defined, or nil otherwise
e = Element.new("el")
e.add_attributes({"xmlns:ns", "http://url"})
e.namespace( "ns" ) # -> "http://url"
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