Dan Sapala dsapala

## 00_destructuring.md

      
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                dsapala
                / 00_destructuring.md
            
            
              Created
              September 2, 2016 14:11
                — forked from john2x/00_destructuring.md
            
              
                Clojure Destructuring Tutorial and Cheat Sheet
              
          
    Clojure Destructuring Tutorial and Cheat Sheet

(Related blog post)
Simply put, destructuring in Clojure is a way extract values from a datastructure and bind them to symbols, without having to explicitly traverse the datstructure. It allows for elegant and concise Clojure code.
Vectors


## index.html
<!DOCTYPE html>
<html>
  <head>
    <title>JS in-browser barcode reader</title>
      <style type="text/css">
        body > div {
          position: relative;
          width: 320px; height: 240px;
        }
        video { position: absolute; top: 0; left: 0; width: 320px; height: 240px; }

## namespace.coffee
#
# http://stackoverflow.com/questions/8730859/classes-within-coffeescript-namespace
# from https://github.com/jashkenas/coffee-script/wiki/FAQ
# Code:
#
namespace = (target, name, block) ->
  [target, name, block] = [(if typeof exports isnt 'undefined' then exports else window), arguments...] if arguments.length < 3
  top    = target
  target = target[item] or= {} for item in name.split '.'
  block target, top

## hack.sh
#!/usr/bin/env sh

##
# This is script with usefull tips taken from:
#   https://github.com/mathiasbynens/dotfiles/blob/master/.osx
#
# install it:
#   curl -sL https://raw.github.com/gist/2108403/hack.sh | sh
#

## my_app_money.rb
module MyApp
  class Money
    include Mongoid::Fields::Serializable

    def cast_on_read?; true; end

    def deserialize(object)
      return nil if object.blank?
      ::Money.new(object[:cents] || object["cents"], object[:currency] || object["currency"])
    end

## my_app_money.rb
module MyApp
  class Money
    include Mongoid::Fields::Serializable

    def cast_on_read?; true; end

    def deserialize(object)
      return nil if object.blank?
      ::Money.new(object[:cents] || object["cents"], object[:currency] || object["currency"])
    end
	<!DOCTYPE html>
	<html>
	<head>
	<title>JS in-browser barcode reader</title>
	<style type="text/css">
	body > div {
	position: relative;
	width: 320px; height: 240px;
	}
	video { position: absolute; top: 0; left: 0; width: 320px; height: 240px; }
	#
	# http://stackoverflow.com/questions/8730859/classes-within-coffeescript-namespace
	# from https://github.com/jashkenas/coffee-script/wiki/FAQ
	# Code:
	#
	namespace = (target, name, block) ->
	[target, name, block] = [(if typeof exports isnt 'undefined' then exports else window), arguments...] if arguments.length < 3
	top = target
	target = target[item] or= {} for item in name.split '.'
	block target, top
	#!/usr/bin/env sh

	##
	# This is script with usefull tips taken from:
	# https://github.com/mathiasbynens/dotfiles/blob/master/.osx
	#
	# install it:
	# curl -sL https://raw.github.com/gist/2108403/hack.sh \| sh
	#
	module MyApp
	class Money
	include Mongoid::Fields::Serializable

	def cast_on_read?; true; end

	def deserialize(object)
	return nil if object.blank?
	::Money.new(object[:cents] \|\| object["cents"], object[:currency] \|\| object["currency"])
	end