James Martelletti jmartelletti
jmartelletti
/ gist:93795edac1d7e4c8f764
Created
September 17, 2014 09:46
Ruby silently evaluating to the wrong value?
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| ERROR = "error" | |
| STOPPED = "stopped" | |
| RUNNING = "running" | |
| state = ERROR | |
| desired = STOPPED | |
| ([RUNNING].include? state) || (state == ERROR && desired == STOPPED) | |
| [RUNNING].include?(state) || (state == ERROR && desired == STOPPED) | |
| [RUNNING].include? state || (state == ERROR && desired == STOPPED) |
jmartelletti
/ gist:760048d23cc9547016b0
Created
July 26, 2014 14:42
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| require "binding_of_caller" | |
| calls = [] | |
| stats = {} | |
| trace = TracePoint.new(:call, :class, :return) do |tp| | |
| next if tp.path =~ /\/var\/lib\/gems\/2\.0\.0/ | |
| next if tp.path =~ /\/usr\/lib\/ruby\/2\.0\.0/ | |
| next if tp.path =~ /\(erb\)/ | |
| stats[tp.defined_class] ||= {} |
jmartelletti
/ gist:3109793
Created
July 14, 2012 07:09
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| scans = [ | |
| ['A','B','C','D','A','B','A','A'], | |
| ['C','C','C','C','C','C','C'], | |
| ['A','B','C','D'] | |
| ] | |
| products = [ | |
| { :code => 'A', :volume => 4, :price => 7 }, | |
| { :code => 'A', :volume => 1, :price => 2 }, | |
| { :code => 'B', :volume => 1, :price => 12 }, |