# Toggleable # # Provides the morginally useful method "toggle_between". Sure, you

# Toggleable # <b>Note:</b> If you want your custom class to include # toggle_between!, you must include this module AFTER you have defined

# Array.each_pair - debatably useful for walking adjacent pairs in an array. # Given [1,2,3,4], yields up in pairs: [1,2], [2,3], [3,4]. # WRITTEN AS A MONKEYPATCH ONLY FOR SUCCINTNESS! Real programmers use modules.

# If I'm testing yield syntax, I like to build up a test block and store it off. Then pass it in anywhere blocks are accepted: irb(main):001:0> h = {:a => 1, :b => 2}