Created
          June 16, 2012 01:53 
        
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    blocs and procs
  
        
  
    
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  | friends = ["Sally", "Mary", "Joe"] | |
| love = [] | |
| friends.each do |friend| | |
| love << "I love " + friend + "." | |
| end | |
| puts love | |
| class Array | |
| def new_collect | |
| result = [] | |
| self.each do |friend| | |
| result << yield(friend) | |
| end | |
| result | |
| end | |
| class Array | |
| def new_count | |
| result = 0 | |
| self.each do |number| | |
| if yield(number) | |
| result += 1 | |
| end | |
| end | |
| result | |
| end | |
| end | |
  
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