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April 21, 2016 12:48
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Rails Debugging
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| # Figure out where a method was defined | |
| object = Object.new | |
| puts object.method(:blank?).source_location | |
| => ["/gems/activesupport-5.0.0.beta1/lib/active_support/core_ext/object/blank.rb", 14] | |
| # Opening a dependency from a project | |
| $ bundle open active_support | |
| # Un-debug a gem | |
| gem pristine activesupport | |
| # Generate backtrace | |
| puts caller | |
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