skatenerd

require 'nokogiri'
require 'net/http'
require 'dm-core'

class Prediction
  include DataMapper::Resource
  property :id, Serial
  belongs_to :snapshot
  property :minutes, Integer
end

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(defn compare-tuples [tuple-1 tuple-2]
  (or (first (remove zero? (map compare tuple-1 tuple-2))) 0))

(defn get-values-at [record keys]
  (map #(get record %) keys))

(defn sort-by-keys [keys to-sort]
   (sort-by  #(get-values-at % keys)  compare-tuples to-sort))
   
(def people [

skatenerd

(defn sort-by-lambdas [lambdas to-sort]
  (sort-by
    #(mapv (fn [lambda] (lambda %)) lambdas)
    to-sort))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;test

(describe "sorting"
  (it "sorts by lowercased name"
    (let [people [{:name "aaa"} {:name "BBB"}]]

skatenerd

def gapsize(biggersize, smallersize)
    num_gaps = smallersize + 1
    total_of_all_gaps = biggersize - smallersize
    total_of_all_gaps / num_gaps
 end



def gap_sequence(bigger_list, smaller_list)

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(def kill-spaces #(clojure.string/replace % " " ""))

(-> "a b c" kill-spaces)
;"abc"

(-> "a b c" #(clojure.string/replace % " " ""))
;kaboom!!!!!

skatenerd

def wat():
  z=1
  def inner(x):
    return (z + x)
  return inner


z=55
print wat()(5)

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(defmacro make-it [name args defaults & exprs]
  `(defn ~name
     (~args
       (~name ~@(concat args (vals defaults)))
       )
     (~(vec (concat args (keys defaults)))
       ~@exprs)))

(prn (macroexpand-1 '(make-it bar [a b] {c +} (prn "HI") (c a b))))

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(defmacro def-defaults [name args defaults & exprs]
  `(defn ~name [~@args & {:keys ~(vec (keys defaults)) :or ~defaults}]
     ~@exprs))

(def-defaults use-the-operator [a b] {operator +} (operator a b))

(prn "--------------------------")
(prn (use-the-operator 1 2)) ; --> 3
(prn (use-the-operator 1 2 :operator *)) ; --> 2
(prn "--------------------------")

skatenerd

class LinkedList
  class Node
    attr_accessor :value, :next_node

    def initialize(value, next_node = nil)
      @value = value
      @next_node = next_node
    end
  end

skatenerd

require 'json'

class SmartphoneSpy
  def do_spying
    recorded_activities = {bus_trip: 5.5, ate_meal: "chicken"}
    message_to_send = recorded_activities.to_json
    send_via_internet_to_HQ(message_to_send)
  end

  def send_via_internet_to_HQ(message_to_send)