Class: RuntimeError (Ruby 2.3.4)

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    • error.c

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    RuntimeError

    A generic error class raised when an invalid operation is attempted.

    [1, 2, 3].freeze << 4
    

    raises the exception:

    RuntimeError: can't modify frozen Array

    Kernel#raise will raise a RuntimeError if no Exception class is specified.

    raise "ouch"
    

    raises the exception:

    RuntimeError: ouch