;; Connected to nREPL server - nrepl://localhost:42827
;; CIDER 0.14.0snapshot (package: 20161013.518), nREPL 0.2.10
;; Clojure 1.7.0, Java 1.8.0_102
;;     Docs: (doc function-name)
;;           (find-doc part-of-name)
;;   Source: (source function-name)
;;  Javadoc: (javadoc java-object-or-class)
;;     Exit: <C-c C-q>
;;  Results: Stored in vars *1, *2, *3, an exception in *e;
;; ======================================================================
;; If you're new to CIDER it is highly recommended to go through its
;; manual first. Type <M-x cider-view-manual> to view it.
;; In case you're seeing any warnings you should consult the manual's
;; "Troubleshooting" section.
;;
;; Here are few tips to get you started:
;;
;; * Press <C-h m> to see a list of the keybindings available (this
;;   will work in every Emacs buffer)
;; * Press <, ,> to quickly invoke some REPL command
;; * Press <, s s> to switch between the REPL and a Clojure file
;; * Press <M-x cider-find-var> to jump to the source of something (e.g. a var, a
;;   Java method)
;; * Press <, h h> to view the documentation for something (e.g.
;;   a var, a Java method)
;; * Enable `eldoc-mode' to display function & method signatures in the minibuffer.
;; * Print CIDER's refcard and keep it close to your keyboard.
;;
;; CIDER is super customizable - try <M-x customize-group cider> to
;; get a feel for this. If you're thirsty for knowledge you should try
;; <M-x cider-drink-a-sip>.
;;
;; If you think you've encountered a bug (or have some suggestions for
;; improvements) use <M-x cider-report-bug> to report it.
;;
;; Above all else - don't panic! In case of an emergency - procure
;; some (hard) cider and enjoy it responsibly!
;;
;; You can remove this message with the `cider-repl-clear-help-banner' command.
;; You can disable it from appearing on start by setting
;; `cider-repl-display-help-banner' to nil.
;; ======================================================================
WARNING: CIDER requires nREPL 0.2.12 (or newer) to work properly
         More information.
WARNING: CIDER's version (0.14.0-snapshot) does not match cider-nrepl's version (nil). Things will break!
         More information.
WARNING: clj-refactor and refactor-nrepl are out of sync.
Their versions are 2.3.0-SNAPSHOT (package: 20161005.344) and n/a, respectively.
You can mute this warning by changing cljr-suppress-middleware-warnings.
user> (into '() [2 3 4 5])
(5 4 3 2)
user> (def v1 [2 3 4 5])
#'user/v1
user> (into v1 [30 40 50])
[2 3 4 5 30 40 50]
user> (conj v1 10)
[2 3 4 5 10]
user> v1
[2 3 4 5]
user> (count v1)
4
user> (v1 0)
2
user> (map v1 '(3 1 2))
(5 3 4)
user> (rest v1)
(3 4 5)
user> (def v1 [1 3 5 7 2 4 6])
#'user/v1
user> (filterv #(> % 5) v1)
[7 6]
user> (filterv #(<= % 5) v1)
[1 3 5 2 4]
user> (defn greater-than-five [x] (> x 5))
#'user/greater-than-five
user> ( #(> % 123) 12)
false
user> ( #(> % 123) 1233)
true
user> (inc 123)
124
user> (def s1 #{10 20 30})
#'user/s1
user> s1
#{20 30 10}
user> (s1 10)
10
user> (filter s1 [5 10 15 20 25])
(10 20)
user> (filterv s1 [5 10 15 20 25])
[10 20]
user> (if (empty? nil) 'do-true-thing 'do-false-thing)
do-true-thing
user> (reduce + 0 '(1 2 3))
6
user> (reduce (fn [a b] (str "(" a " " b ")")) "x" '(1 2 3))
"(((x 1) 2) 3)"
user> (def h1 {:name "Gollum" :salary 13 :title "Coder"})
#'user/h1
user> (h1 :title)
"Coder"
user> (def h1 {:name "Gollum", :salary 13, :title "Coder"})
#'user/h1
user> (assoc h1 :hobby "Weiqi")
{:name "Gollum", :salary 13, :title "Coder", :hobby "Weiqi"}
user> (def num-zeros [v] (count (filter zero? v)))
CompilerException java.lang.RuntimeException: Too many arguments to def, compiling:(/tmp/form-init8244059015719196079.clj:1:1) 
user> (defn num-zeros [v] (count (filter zero? v)))
#'user/num-zeros
user> (num-zeros [1 0 2 0 3 0 4])
3
user> (defn list-to-set [ll] (into #{} ll))
#'user/list-to-set
user> (list-to-set '8 6 7 5 3 0 9)
ArityException Wrong number of args (7) passed to: user/list-to-set  clojure.lang.AFn.throwArity (AFn.java:429)
user> (list-to-set '(8 6 7 5 3 0 9))
#{0 7 6 3 9 5 8}
user> (def employees
        [{:name "Fred" :salary 10}
         {:name "Gollum" :salary 20}
         {:name "Judy" :salary 123123123}])
#'user/employees
user> (defn salary-of [emps name]
        (filterv #(= name (:name %)) emps)))
#'user/salary-ofRuntimeException Unmatched delimiter: )  clojure.lang.Util.runtimeException (Util.java:221)
user> (defn salary-of [emps name]
        (filterv #(= name (:name %)) emps))
#'user/salary-of
user> (salary-of employees "Fred")
[{:name "Fred", :salary 10}]
user> (defn salary-of [emps name]
        (map :salary
             (filterv #(= name (:name %)) emps)))