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Standard Method Names

The names in Table D.2 are not reserved words. They are, however, names of standard methods provided by the Kernel module and the Class and Object classes, and nearly every possible Ruby script depends on one or more of them. Using them in a way inconsistent with their conventional meanings can be dangerous.

Table D.2. Standard Method Names

autoload	at_exit	ancestors
abort	block_given?	binding
chomp!	class_eval	const_get
const_set	catch	caller
chomp	chop	class_variables
const_defined?	constants	callcc
clone	chop!	class
dup	display	equal?
eval	exit!	eql?
exec	extend	exit
freeze	format	frozen?
fail	fork	gsub!
getc	gets	global_variables
gsub	hash	included_modules
id	include?	__id__
is_a?	instance_variables	instance_of?
instance_methods ...