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file.rb

This Ruby code snippet demonstrates a special global constant __FILE__ which, when evaluated in an Interactive Ruby (IRB) session, returns a string representing the current file being executed. In this specific IRB context, it returns “(irb)” because the code is being executed directly within the interactive session, not from a file. It effectively indicates the source context of execution.

Additional Note

__FILE__ in Ruby is a predefined constant that represents the current file’s name. It returns a string with the name of the file in which it is used.

Ruby code snippet

__FILE__
#=> "(irb)"

Executed with Ruby 3.4.5.