- BasicObject
- Object
- Rake::TaskLib
- Reline::LineEditor
- RubyLex
- PrettyPrint::GroupQueue
- Net::SMTP::Response
- Fiddle::CompositeHandler
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- IO::ConsoleMode
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- OpenSSL::SSL::Session
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- Digest::Class
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- Pathname
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- Thread
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- Time
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- Numeric
- Symbol
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- IRB::Color::SymbolState
- Ripper::Filter
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- Ripper
- Reline::ANSI
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- Fiddle::CStruct
- Gem::StreamUI::SilentDownloadReporter
- Fiddle::Pointer
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- Fiddle::Function
- Reline::LineEditor::Dialog
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- Reline::KillRing::RingBuffer
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- Reline::KeyActor::Base
- Reline::Config
- PrettyPrint::SingleLine
- PrettyPrint
- Module
- UnboundMethod
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- Method
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- Dir
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- Enumerator
- Gem::StreamUI::SimpleProgressReporter
- StringIO
- Psych::Nodes::Node
- Rake::LinkedList
- Rake::TaskArguments
- OpenSSL::Config
- OpenSSL::SSL::SSLSocket
- URI::Generic
- OpenSSL::SSL::SSLServer
- OptionParser::List
- OpenSSL::Timestamp::Response
- IPAddr
- Socket::UDPSource
- Addrinfo
- Socket::AncillaryData
- Socket::Option
- OpenSSL::X509::Request
- OpenSSL::X509::CRL
- OpenSSL::X509::Extension
- OpenSSL::BN
- Psych::Coder
- Psych::Handler::DumperOptions
- OpenSSL::ASN1::ASN1Data
- OpenSSL::ASN1::EndOfContent
- OpenSSL::ASN1::Constructive
- OpenSSL::ASN1::Primitive
- OpenSSL::ASN1::UTCTime
- OpenSSL::ASN1::GeneralString
- OpenSSL::ASN1::IA5String
- OpenSSL::ASN1::ObjectId
- OpenSSL::ASN1::OctetString
- OpenSSL::ASN1::Boolean
- OpenSSL::ASN1::GeneralizedTime
- OpenSSL::ASN1::Null
- OpenSSL::ASN1::BMPString
- OpenSSL::ASN1::UniversalString
- OpenSSL::ASN1::ISO64String
- OpenSSL::ASN1::GraphicString
- OpenSSL::ASN1::VideotexString
- OpenSSL::ASN1::PrintableString
- OpenSSL::ASN1::NumericString
- OpenSSL::ASN1::UTF8String
- OpenSSL::ASN1::BitString
- OpenSSL::ASN1::Integer
- OpenSSL::ASN1::T61String
- OpenSSL::ASN1::Enumerated
- OpenSSL::ASN1::UTCTime
- OpenSSL::ASN1::EndOfContent
- OpenSSL::OCSP::CertificateId
- OpenSSL::OCSP::SingleResponse
- OpenSSL::OCSP::BasicResponse
- OpenSSL::OCSP::Request
- OpenSSL::X509::StoreContext
- OpenSSL::X509::Store
- OptionParser::Switch
- OpenSSL::X509::Name
- OpenSSL::X509::ExtensionFactory
- OpenSSL::SSL::SSLContext
- OpenSSL::PKey::EC::Point
- OpenSSL::PKey::EC::Group
- OpenSSL::PKey::PKey
- OpenSSL::PKCS7::SignerInfo
- OpenSSL::PKCS7
- OpenSSL::PKCS12
- ERB
- Logger::LogDevice
- OpenSSL::Netscape::SPKI
- OpenSSL::HMAC
- Rake::LateTime
- Rake::DefaultLoader
- Rake::EarlyTime
- Rake::Task
- Rake::Application
- Rake::FileList
- ErrorHighlight::Spotter
- JSON::Ext::Generator::State
- JSON::Ext::Parser
- Psych::ScalarScanner
- StringScanner
- Psych::Handler
- Psych::Parser
- Zlib::GzipFile
- Gem::PathSupport
- MonitorMixin::ConditionVariable
- Zlib::ZStream
- TrueClass
- Gem::Ext::Builder
- Gem::StreamUI::ThreadedDownloadReporter
- Gem::StreamUI
- Gem::Dependency
- Gem::Source
- DidYouMean::Formatter
- DidYouMean::RequirePathChecker
- DidYouMean::TreeSpellChecker
- DidYouMean::MethodNameChecker
- DidYouMean::VariableNameChecker
- DidYouMean::SpellChecker
- Monitor
- Gem::Requirement
- Gem::Platform
- Gem::BasicSpecification
- RubyVM::AbstractSyntaxTree::Node
- TracePoint
- Fiber
- Process::Status
- Thread::ConditionVariable
- Thread::Queue
- ThreadGroup
- RubyVM::InstructionSequence
- Thread::Backtrace::Location
- RubyVM
- Binding
- IO::Buffer
- File::Stat
- Encoding::Converter
- MatchData
- Exception
- CGI::InvalidEncoding
- ErrorHighlight::Spotter::NonAscii
- NoMemoryError
- SystemExit
- SystemStackError
- SecurityError
- ScriptError
- StandardError
- Rake::CommandLineOptionError
- Bundler::Thor::Error
- Reline::ConfigEncodingConversionError
- Fiddle::Error
- Net::ProtocolError
- URI::Error
- TSort::Cyclic
- JSON::JSONError
- StringScanner::Error
- ThreadError
- RegexpError
- NoMatchingPatternError
- EncodingError
- TypeError
- RuntimeError
- Rake::Win32::Win32HomeError
- Psych::Exception
- Gem::Exception
- Gem::RemoteInstallationSkipped
- Gem::RemoteError
- Gem::InstallError
- Gem::GemNotFoundException
- Gem::EndOfYAMLException
- Gem::DocumentError
- Gem::GemNotInHomeException
- Gem::DependencyError
- Gem::CommandLineError
- Gem::RemoteSourceException
- Gem::RemoteInstallationCancelled
- Gem::OperationNotSupportedError
- Gem::InvalidSpecificationException
- Gem::VerificationError
- Gem::RubyVersionMismatch
- Gem::ImpossibleDependenciesError
- Gem::FormatException
- Gem::FilePermissionError
- Gem::UninstallError
- Gem::DependencyRemovalException
- Gem::UnknownCommandError
- Gem::RemoteInstallationSkipped
- IO::Buffer::InvalidatedError
- IO::Buffer::AllocationError
- IO::Buffer::LockedError
- Reline::Config::InvalidInputrc
- OptionParser::ParseError
- Timeout::Error
- Ractor::Error
- IO::Buffer::AccessError
- FrozenError
- Logger::Error
- Rake::Win32::Win32HomeError
- RangeError
- IOError
- ZeroDivisionError
- IndexError
- SystemCallError
- Errno::EXFULL
- Errno::EUNATCH
- Errno::ETIMEDOUT
- Errno::ESRMNT
- Errno::ESHUTDOWN
- Errno::EREMOTEIO
- Errno::EPROTOTYPE
- Errno::EPFNOSUPPORT
- Errno::ENXIO
- Errno::ENOTSOCK
- Errno::ENOTDIR
- Errno::ENOSYS
- Errno::ENOPROTOOPT
- Errno::ENOMEM
- Errno::ENOKEY
- Errno::ENOBUFS
- Errno::ENETRESET
- Errno::EMULTIHOP
- Errno::EMEDIUMTYPE
- Errno::ELIBMAX
- Errno::EL3RST
- Errno::EKEYREJECTED
- Errno::EISDIR
- Errno::EINTR
- Errno::EHWPOISON
- Errno::EFAULT
- Errno::EDOM
- Errno::ECONNABORTED
- Errno::ECANCELED
- Errno::EBADRQC
- Errno::EBADF
- Errno::EAGAIN
- Errno::EADDRINUSE
- Errno::EDESTADDRREQ
- Errno::EXDEV
- Errno::EUSERS
- Errno::EUCLEAN
- Errno::ETXTBSY
- Errno::ETOOMANYREFS
- Errno::ETIME
- Errno::ESTRPIPE
- Errno::ESTALE
- Errno::ESRCH
- Errno::ESPIPE
- Errno::ESOCKTNOSUPPORT
- Errno::EROFS
- Errno::ERFKILL
- Errno::ERESTART
- Errno::EREMOTE
- Errno::EREMCHG
- Errno::ERANGE
- Errno::EPROTONOSUPPORT
- Errno::EPROTO
- Errno::EPIPE
- Errno::EPERM
- Errno::EOWNERDEAD
- Errno::EOVERFLOW
- Errno::ENOTUNIQ
- Errno::ENOTTY
- Errno::ENOTSUP
- Errno::ENOTRECOVERABLE
- Errno::ENOTNAM
- Errno::ENOTEMPTY
- Errno::ENOTCONN
- Errno::ENOTBLK
- Errno::ENOSTR
- Errno::ENOSR
- Errno::ENOSPC
- Errno::ENOPKG
- Errno::ENONET
- Errno::ENOMSG
- Errno::ENOMEDIUM
- Errno::ENOLINK
- Errno::ENOLCK
- Errno::ENOEXEC
- Errno::ENOENT
- Errno::ENODATA
- Errno::ENOCSI
- Errno::ENOANO
- Errno::ENFILE
- Errno::ENETUNREACH
- Errno::ENETDOWN
- Errno::ENAVAIL
- Errno::ENAMETOOLONG
- Errno::EMSGSIZE
- Errno::EMLINK
- Errno::EMFILE
- Errno::ELOOP
- Errno::ELNRNG
- Errno::ELIBSCN
- Errno::ELIBEXEC
- Errno::ELIBBAD
- Errno::ELIBACC
- Errno::EL2NSYNC
- Errno::EL2HLT
- Errno::EKEYREVOKED
- Errno::EKEYEXPIRED
- Errno::EISNAM
- Errno::EISCONN
- Errno::EIO
- Errno::EINVAL
- Errno::EINPROGRESS
- Errno::EILSEQ
- Errno::EIDRM
- Errno::EHOSTUNREACH
- Errno::EHOSTDOWN
- Errno::EFBIG
- Errno::EEXIST
- Errno::EDQUOT
- Errno::EDOTDOT
- Errno::EDEADLK
- Errno::ECONNRESET
- Errno::ECONNREFUSED
- Errno::ECOMM
- Errno::ECHRNG
- Errno::ECHILD
- Errno::EBUSY
- Errno::EBFONT
- Errno::EBADSLT
- Errno::EBADR
- Errno::EBADMSG
- Errno::EBADFD
- Errno::EBADE
- Errno::EALREADY
- Errno::EAFNOSUPPORT
- Errno::EADV
- Errno::EADDRNOTAVAIL
- Errno::E2BIG
- Errno::NOERROR
- Errno::ENODEV
- Errno::EL3HLT
- Errno::EACCES
- Errno::EXFULL
- RubyLex::TerminateLineInput
- Reline::Terminfo::TerminfoError
- Racc::ParseError
- WeakRef::RefError
- SocketError
- OpenSSL::OpenSSLError
- OpenSSL::X509::CertificateError
- OpenSSL::OCSP::OCSPError
- OpenSSL::X509::StoreError
- OpenSSL::X509::RequestError
- OpenSSL::X509::ExtensionError
- OpenSSL::Timestamp::TimestampError
- OpenSSL::SSL::SSLError
- OpenSSL::PKey::EC::Point::Error
- OpenSSL::PKey::PKeyError
- OpenSSL::PKCS12::PKCS12Error
- OpenSSL::Digest::DigestError
- OpenSSL::Cipher::CipherError
- OpenSSL::ConfigError
- OpenSSL::BNError
- OpenSSL::KDF::KDFError
- OpenSSL::ASN1::ASN1Error
- OpenSSL::X509::RevokedError
- OpenSSL::X509::NameError
- OpenSSL::X509::CRLError
- OpenSSL::X509::AttributeError
- OpenSSL::SSL::Session::SessionError
- OpenSSL::Random::RandomError
- OpenSSL::PKey::EC::Group::Error
- OpenSSL::PKCS7::PKCS7Error
- OpenSSL::Netscape::SPKIError
- OpenSSL::HMACError
- OpenSSL::X509::CertificateError
- Rake::RuleRecursionOverflowError
- Zlib::Error
- NameError
- FiberError
- Math::DomainError
- LocalJumpError
- ArgumentError
- Ripper::TokenPattern::Error
- Enumerable::SoleItemExpectedError
- Bundler::TSort::Cyclic
- Bundler::URI::Error
- Bundler::MarshalError
- Bundler::BundlerError
- Bundler::DirectoryRemovalError
- Bundler::GemRequireError
- Bundler::APIResponseMismatchError
- Bundler::LockfileError
- Bundler::ProductionError
- Bundler::PathError
- Bundler::GemNotFound
- Bundler::GenericSystemCallError
- Bundler::VirtualProtocolError
- Bundler::YamlSyntaxError
- Bundler::PermissionError
- Bundler::APIResponseInvalidDependenciesError
- Bundler::PluginError
- Bundler::GemfileLockNotFound
- Bundler::CyclicDependencyError
- Bundler::SecurityError
- Bundler::RubyVersionMismatch
- Bundler::HTTPError
- Bundler::InvalidOption
- Bundler::GemspecError
- Bundler::DeprecatedError
- Bundler::GitError
- Bundler::InstallHookError
- Bundler::SolveFailure
- Bundler::InstallError
- Bundler::GemfileError
- Bundler::ThreadCreationError
- Bundler::GemfileNotFound
- Bundler::DirectoryRemovalError
- Rake::CommandLineOptionError
- SignalException
- CGI::InvalidEncoding
- Ripper::TokenPattern
- Fiddle::Packer
- Fiddle::MemoryView
- PrettyPrint::Group
- PrettyPrint::Breakable
- PrettyPrint::Text
- Net::SMTP::Address
- Net::ReadAdapter
- Net::BufferedIO
- Tempfile::Remover
- Benchmark::Job
- Bundler::Index
- URI::RFC3986_Parser
- FileUtils::Entry_
- ERB::Compiler::Buffer
- ERB::Compiler::Scanner
- ERB::Compiler
- Timeout::Request
- Psych::Visitors::YAMLTree::Registrar
- Bundler::Source::Git::GitProxy
- Bundler::LazySpecification
- Bundler::RubyVersion
- Bundler::URI::RFC3986_Parser
- Bundler::URI::RFC2396_Parser
- Bundler::SourceList
- Bundler::Definition
- Bundler::Source
- Bundler::LockfileParser
- Bundler::Settings
- Gem::SilentUI::NullIO
- Bundler::Thor::Shell::Basic
- Bundler::UI::Shell
- Bundler::Thor
- Bundler::Thor::LineEditor::Readline::PathCompletion
- Bundler::Thor::Arguments
- Bundler::Thor::Argument
- Bundler::Thor::NestedContext
- Bundler::Thor::UndefinedCommandError::SpellChecker
- Bundler::GemHelpers::PlatformMatch
- Bundler::EnvironmentPreserver
- Bundler::FileUtils::Entry_
- Bundler::CurrentRuby
- DidYouMean::DeprecatedMapping
- Gem::StubSpecification::StubLine
- Complex::compatible
- Random::Base
- Time::tm
- NameError::message
- Bundler::SpecSet
- Bundler::RemoteSpecification
- Delegator
- Ractor::MovedObject
- Object
This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
prev_month
# Date.prev_month
(from ruby core)
---
d.prev_month([n=1]) -> date
---
This method is equivalent to d << n.
See Date#<< for examples.
- monday?
- blank?
- to_formatted_s
- end_of_day
- beginning_of_day
- year
- mday
- to_datetime
- day
- yday
- sunday?
- monday?
- ajd
- ld
- cweek
- friday?
- wednesday?
- saturday?
- italy
- next_day
- gregorian
- prev_day
- to_date
- strftime
- to_time
- downto
- next
- infinite?
- noon
- at_middle_of_day
- plus_with_duration
- compare_with_coercion
- acts_like_date?
- deconstruct_keys
- succ
- marshal_dump
- year
- to_datetime
- asctime
- wday
- yday
- sunday?
- amjd
- cwyear
- thursday?
- tuesday?
- saturday?
- italy
- next_day
- gregorian
- prev_day
- to_date
- strftime
- to_time
- downto
- midnight
- noon
- at_middle_of_day
- infinite?
- plus_without_duration
- compare_without_coercion
- as_json
- to_s
- since
- rfc3339
- start
- mon
- -
- +
- leap?
- jd
- asctime
- month
- wday
- england
- xmlschema
- iso8601
- rfc2822
- rfc822
- httpdate
- amjd
- mjd
- day_fraction
- cwyear
- cwday
- thursday?
- tuesday?
- julian?
- gregorian?
- new_start
- julian
- prev_month
- next_month
- next_year
- prev_year
- in
- jisx0301
- step
- ctime
- <=>
- <<
- >>
- ===
- xmlschema
- eql?
- upto
- as_json
- inspect
- to_s
- inspect
- hash
- start
- mon
- mday
- -
- +
- leap?
- jd
- day
- month
- iso8601
- rfc2822
- rfc3339
- succ
- marshal_dump
- rfc822
- httpdate
- ajd
- mjd
- ld
- day_fraction
- cweek
- cwday
- friday?
- wednesday?
- julian?
- gregorian?
- england
- new_start
- julian
- prev_month
- next_month
- next_year
- prev_year
- in
- jisx0301
- step
- ctime
- <=>
- <<
- >>
- ===
- next
- eql?
- upto
- hash
- acts_like_date?
- to_fs
- to_default_s
- readable_inspect
- deconstruct_keys
- default_inspect
- since
- advance
- ago
- midnight
- at_midnight
- at_beginning_of_day
- midday
- at_noon
- at_midday
- at_end_of_day
- change
- marshal_load
- plus_without_duration
- minus_with_duration
- minus_without_duration
- compare_without_coercion
- blank?
- to_fs
- to_default_s
- to_formatted_s
- readable_inspect
- default_inspect
- advance
- ago
- beginning_of_day
- at_midnight
- middle_of_day
- at_beginning_of_day
- midday
- at_noon
- at_midday
- at_end_of_day
- change
- marshal_load
- plus_with_duration
- minus_with_duration
- minus_without_duration
- compare_with_coercion
- middle_of_day
- end_of_day
This is MURDOC! A Ruby documentation browser inspired by Smalltalk-80. It allows you to learn about Ruby by browsing through its class hierarchies, and see any of its methods.