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ActiveSupport | String#underscore

概要

String#underscore

詳細

String#underscore について

String#underscore

文字列をスネークケースにした結果を受け取る

サンプル

# encoding: utf-8
require 'active_support/core_ext/string/inflections'
require 'tbpgr_utils'

bulk_puts_eval binding, <<-EOS
'CamelCase'.underscore
'lower'.underscore
'UPPER'.underscore
'SomeModule::SomeClass'.underscore
EOS

__END__
・下記はTbpgrUtils gemの機能
bulk_puts_eval

https://rubygems.org/gems/tbpgr_utils
https://github.com/tbpgr/tbpgr_utils

出力

'CamelCase'.underscore # => "camel_case"
'lower'.underscore # => "lower"
'UPPER'.underscore # => "upper"
'SomeModule::SomeClass'.underscore # => "some_module/some_class"