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End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

class method

Struct.keyword_init?

StructClass::keyword_init? → true or falsy value

Returns true if the class was initialized with keyword_init: true. Otherwise returns nil or false.

Examples:

Example
Foo = Struct.new(:a)
Foo.keyword_init? # => nil
Bar = Struct.new(:a, keyword_init: true)
Bar.keyword_init? # => true
Baz = Struct.new(:a, keyword_init: false)
Baz.keyword_init? # => false
See also .json_create .members .new also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2