Return true if x is a symbol with a namespace
(qualified-symbol? 'clojure.core/symbol) ;;=> true (qualified-symbol? 'symbol) ;;=> nil (qualified-symbol? "string") ;;=> false (qualified-symbol? 42) ;;=> false (qualified-symbol? nil) ;;=> false
Return true if x is a Symbol
Return true if x is a symbol without a namespace
Returns the namespace String of a symbol or keyword, or nil if not present.
qualified-symbol?
