Type:
Module
Constants:
RUBYGEMS_ACTIVATION_MONITOR : Monitor.new # :nodoc:

The Kernel module is included by class Object, so its methods are available in every Ruby object.

The Kernel instance methods are documented in class Object while the module methods are documented here. These methods are called without a receiver and thus can be called in functional form:

sprintf "%.1f", 1.234 #=> "1.2"
iterator?
  • References/Ruby on Rails/Ruby/Classes/Kernel

iterator? â true or false Instance Public methods Returns true

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pp
  • References/Ruby on Rails/Ruby/Classes/Kernel

pp(*objs) Class Public methods prints arguments in pretty form.

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Rational
  • References/Ruby on Rails/Ruby/Classes/Kernel

Rational(x[, y]) â numeric Instance Public methods Returns x/y;

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spawn
  • References/Ruby on Rails/Ruby/Classes/Kernel

spawn([env,] command... [,options]) â pidProcess.spawn([env,] command... [,options]) â pid Instance

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Array
  • References/Ruby on Rails/Ruby/Classes/Kernel

Array(arg) â array Instance Public methods Returns arg as an

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exit!
  • References/Ruby on Rails/Ruby/Classes/Kernel

Process.exit!(status=false) Instance Public methods Exits the process immediately

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sleep
  • References/Ruby on Rails/Ruby/Classes/Kernel

sleep([duration]) â fixnum Instance Public methods Suspends the current

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srand
  • References/Ruby on Rails/Ruby/Classes/Kernel

srand(number = Random.new_seed) â old_seed Instance Public methods Seeds the

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fail
  • References/Ruby on Rails/Ruby/Classes/Kernel

failfail(string)fail(exception [, string [, array]]) Instance Public methods With

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open
  • References/Ruby on Rails/Ruby/Classes/Kernel

open(path [, mode [, perm]] [, opt]) â io or nilopen(path [, mode [, perm]] [, opt]) {|io| block } â obj

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