How to determine the value of a controller variable during execution in Ruby on Rails? -

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what best way me determine controller variable's value during execution?

for example, there way can insert break in code, , cause value of variable output screen (or log)?

yes. easiest way raise value string. so: raise @foo.to_s

or, can install debugger (gem install ruby-debug), , start development server --debugger flag. then, in code, call debugger instruction.

inside debugger prompt, have many commands, including p print value of variable.

update: here's a bit more ruby-debug.


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