Manuel Rivero trikitrok

Reverse Polish Notation calculator kata

Useful info:

Examples:

Password Validator kata

"_Ab3ccc" -> ok

"c" -> wrong

"_b3c" -> wrong

"_Ab3cc" -> wrong

"_Abcccc" -> wrong

We'll program the addition of two rationals using TDD.

Suggested API for the method (in Java):

  public Rational add(Rational rational);

	;;
	;; Destructuring
	;;

	;; Destructuring is a concise syntax for declaratively pulling apart collections and
	;; binding values contained therein as named locals within a let form.
	;; (Clojure Programming, Chas Emerick, Brian Carper, Christophe Grand)

	;; Since it's a facility provided by let, it can be used
	;; in any expression that implicitly uses let (like fn, defn, loop, etc).

	(def test-address
	{:street-address "123 Test Lane"
	:city "Testerville"
	:state "TX"})

	;"Destructuring is an arbiter: it breaks up arguments"
	(= "__" ((fn [[a b]] (str b a))
	[:foo :bar]))

	;"Whether in function definitions"

	;;--------------
	;;
	;; A bit about Clojure functions
	;;
	;;--------------

	;; Functions are first class values in Clojure.

	;;--------------
	;; 1. fn form

	(defn- happy? [n visited]
	(if (contains? visited n)
	false
	(if (= n 1)
	true
	(let [ndigits (decompose-in-digits n)
	sum-of-squares (apply + (map square ndigits))]
	(recur sum-of-squares (conj visited n))))))

	(ns password-validator.core)

	(defn- has-more-than-6-chars? [password]
	(> (count password) 6))

	(defn- any? [pred coll]
	(not= nil (some pred coll)))

	(def ^:private contains-at-least-one-upper-case-char?
	(partial any? #(Character/isUpperCase %)))

	app.factory('Track', [
	'$http',
	'$resource',
	'dateStringsInsideObjectsIntoDates',
	'appendTransform',
	'ApiBaseUrl',
	'trackMethods',

	function (
	$http,