Chee Yeo cheeyeo

React.js Minimal Entropy Guide

DO's:

Use explicit contracts to pipe data & events between systems
Business rules should bubble towards the top, UI and semantics should sink towards the bottom

DONT's:

	// calling setProps is not good practice
	// instead render the component outside of the react loop

	React.render(
	myComponent({ data: someData2 }),
	document.getElementById('predictionContent')
	);

	defmodule MacroExp do
	defmacro attr_accessor(atom) do
	getter = String.to_atom("get_#{atom}")
	setter = String.to_atom("set_#{atom}")
	quote do
	def unquote(getter)(data) do
	data \|> Map.from_struct \|> Map.get(unquote(atom))
	end
	def unquote(setter)(data, value) do
	data \|> Map.put(unquote(atom), value)

	items = %w{foo bar baz goo gar gaz hoo har haz}

	def recurse_array(ary, &block)
	head, *tail = ary
	head and block.call(head)
	tail.any? and recurse_array(tail, &block)
	end

	puts "First the items in order:\n"
	recurse_array items do \|item\|

	# Call scopes directly from your URL params:
	#
	# @products = Product.filter(params.slice(:status, :location, :starts_with))
	module Filterable
	extend ActiveSupport::Concern

	module ClassMethods

	# Call the class methods with the same name as the keys in <tt>filtering_params</tt>
	# with their associated values. Most useful for calling named scopes from

	# http://api.rubyonrails.org/classes/ActiveRecord/NestedAttributes/ClassMethods.html

	# need to specify id for an update:

	class Member < ActiveRecord::Base
	has_one :avatar
	accepts_nested_attributes_for :avatar
	end

	params = { member: { name: 'Jack', avatar_attributes: { icon: 'smiling' } } }