Skip to content

End of Life Ruby 3.2 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

Struct#size

size → integer

Returns the number of members.

Example
Customer = Struct.new(:name, :address, :zip)
joe = Customer.new("Joe Smith", "123 Maple, Anytown NC", 12345)
joe.size #=> 3

Struct#length is an alias for Struct#size.

See also #select #to_a #members #to_h also in 4.1 · 4.0 · 3.4 · 3.3 · 3.1 · 3.0