stuarthalloway

;; try this form-by-form at a REPL
(require '[clojure.spec.alpha :as s])

;; create an inline DSL to describe the FizzBuzz world
(defmacro divides-by
  [nm n]
  `(s/def ~nm (s/and pos-int? #(zero? (mod % ~n)))))

;; specify FizzBuzz 
(divides-by ::fizz 3)

puredanger

;; Prints a table of vars in an ns with name/line/added/macro flag/deprecated flag

(defn pr-vars [ns-sym]
  (->> (ns-publics ns-sym) vals (map meta) (sort-by :name) 
    (map #(select-keys % [:name :line :added :macro :deprecated])) 
    (map #(merge {:added nil :macro false :deprecated false} %)) 
    clojure.pprint/print-table))

(pr-vars 'clojure.string)
;; | :added | :macro | :deprecated |                :name | :line |

mike-thompson-day8

Warning: this is just me musing and soliciting stimulating opinions. None of this may happen.

On Writing re-frame Event Handlers

Aside #1:

There should be one — and preferably only one — obvious way to do it
-- Tim Peters