Exception: KeyError

Inherits:

IndexError

• Object
• Exception
• StandardError
• IndexError
• KeyError

Defined in:

error.c,
error.c

Overview

Raised when the specified key is not found. It is a subclass of IndexError.

h = {"foo" => :bar}
h.fetch("foo") #=> :bar
h.fetch("baz") #=> KeyError: key not found: "baz"

Method Summary

Methods inherited from Exception

#==, #backtrace, #backtrace_locations, #cause, #exception, exception, #initialize, #inspect, #message, #set_backtrace, #to_s

Constructor Details

This class inherits a constructor from Exception