Clojure vs Ruby

README.md

Clojure vs Ruby

Simplest way to try these, without having to install anything:

1. Clojure(Script) http://clojurescript.net/
2. Ruby https://replit.com/languages/ruby

Or to try these on your machine

1. Clojure via Babashka https://babashka.org/

• download the latest release
• put bb command on your $PATH e.g. export PATH=/where/babashka/executable/bb`
• start REPL rlwrap bb --repl and paste in the lines

2. Ruby via https://www.ruby-lang.org/es/documentation/installation/

• once you have the ruby executable you should also have irb (interactive Ruby) which is a Ruby REPL
• run irb and paste in the code

Good materials for Clojure:

• https://www.braveclojure.com/clojure-for-the-brave-and-true/

• http://landoflisp.com/

example.clj

; LISP (Clojure)

(def friend "Jean")

(defn greet [name]
  (println (str "Hello " name)))

(greet friend)

(map greet ["Jean" "Madis" "Nayib"])

(defn welcome [name level]
  (if (< level 5)
    (str "Hello " name)
    (str "Hello " name ", nice to see you. How are you")))

(defn welcome [name level]
  (str "Hello " name (cond (> level 5) "nice to see you. How are you")))

(welcome "Jean" 1)
(welcome "Jean" 10)

example.rb

# Ruby

friend = "Jean"

def greet(name)
  print "Hello #{name}\n"
end

greet(friend)


["Jean", "Madis", "Nayib"].map { |name| greet(name) }

class Politeness
  def initialize(name)
    @name = name
  end

  def welcome
    greeting = "Hello #{@name}"
    if @level > 5
      greeting += ", nice to see you. How are you?"
    end
    greeting
  end

  def level=(new_level)
    @level = new_level
  end
end

politeness = Politeness.new("Jean")
politeness.level = 1
politeness.welcome
politeness.level = 10
politeness.welcome