Exception: IndexError

Relationships & Source Files
Extension / Inclusion / Inheritance Descendants
Subclasses: ClosedQueueError, KeyError, StopIteration
Super Chains via Extension / Inclusion / Inheritance
Class Chain: self, ::StandardError, ::Exception
Instance Chain: self, ::StandardError, ::Exception
Inherits:	StandardError ::Object Exception StandardError IndexError
Defined in:	error.c, error.c

Overview

Raised when the given index is invalid.

a = [:foo, :bar]
a.fetch(0)   #=> :foo
a[4]         #=> nil
a.fetch(4)   #=> IndexError: index 4 outside of array bounds: -2...2

Returns true if exception messages will be sent to a tty.

.exception	With no argument, or if the argument is the same as the receiver, return the receiver.
.new	Construct a new ::Exception object, optionally passing in a message.

#==	Equality—If obj is not an ::Exception, returns `false`.
#backtrace	Returns any backtrace associated with the exception.
#backtrace_locations	Returns any backtrace associated with the exception.
#cause	Returns the previous exception ($!) at the time this exception was raised.
#exception	With no argument, or if the argument is the same as the receiver, return the receiver.
#full_message	Returns formatted string of exception.
#inspect	Return this exception's class name and message.
#message	Returns the result of invoking `exception.to_s`.
#set_backtrace	Sets the backtrace information associated with `exc`.
#to_s	Returns exception's message (or the name of the exception if no message is set).

This class inherits a constructor from Exception