Trying to explain blocks

block_example.rb

## This file is not meant to run, just portray what Blocks do

## RUBY Example
names = ['Chris', 'Joe', 'Jeff', 'Tom']
names.each do |name|
  puts name
end
# OUTPUT:
# Chris
# Joe
# Jeffsdfas
# Tom

## Equivalent in python is:
names = ['Chris', 'Joe', 'Jeff', 'Tom']
for name in names: print name

##
# In the case of the python version you are iterating through each element in the list. This is simple and
# straight forward. However in the ruby version what is happening is much harder to understand. The function 
# each is a method of the list object names, which returns for each element in the list. In Ruby they call 
# these enumerables, because they enumerate each item in a list (or range in the case of 5.times)
# For every time an element is "returned" it passes that element as the variable between the
# pipes (|variable|) to the block, which is basically just a function which isn't defined outside of the
# block (a super local function? or a lambda function).
#
# This is actually quite an elegant way to do things, but it can sometimes seem more like magic...
##

Closures (what blocks really are)