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| simple:~ jonathanwallace$ irb | |
| [1] pry(main)> hello = nil | |
| => nil | |
| [2] pry(main)> def hello | |
| [2] pry(main)* puts 'ehloo' | |
| [2] pry(main)* end | |
| => nil | |
| [3] pry(main)> hello | |
| => nil | |
| [4] pry(main)> hello() | |
| ehloo | |
| => nil | |
| [5] pry(main)> |
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