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constantize

constantize(camel_cased_word)

Instance Public methods

Tries to find a constant with the name specified in the argument string.

'Module'.constantize     # => Module
'Test::Unit'.constantize # => Test::Unit

The name is assumed to be the one of a top-level constant, no matter whether it starts with â::â or not. No lexical context is taken into account:

C = 'outside'
module M
  C = 'inside'
  C               # => 'inside'
  'C'.constantize # => 'outside', same as ::C
end

NameError is raised when the name is not in CamelCase or the constant is unknown.

Links:

https://github.com/rails/rails/blob/36019329b015e570a58d9f34027c6e73edc36b77/activesupport/lib/active_support/inflector/methods.rb#L226

doc_ruby_on_rails

2025-01-10 15:47:30

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