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Exception: NoMethodError

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ::NameError, ::StandardError, ::Exception
Instance Chain:
self, ::NameError, ::StandardError, ::Exception
Inherits: NameError
Defined in: error.c,
error.c

Overview

Raised when a method is called on a receiver which doesn't have it defined and also fails to respond with method_missing.

"hello".to_ary

raises the exception:

NoMethodError: undefined method `to_ary' for "hello":String

Class Method Summary

::NameError - Inherited

.new

Construct a new ::NameError exception.

::Exception - Inherited

.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.

Instance Method Summary

  • #args ⇒ Object

    Return the arguments passed in as the third parameter to the constructor.

::NameError - Inherited

#name

Return the name associated with this ::NameError exception.

::Exception - Inherited

#==

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.
#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).

Constructor Details

.new(msg, name [, args]) ⇒ no_method_error

Construct a NoMethodError exception for a method of the given name called with the given arguments. The name may be accessed using the #name method on the resulting object, and the arguments using the #args method.

Instance Method Details

#args ⇒ Object

Return the arguments passed in as the third parameter to the constructor.