fix it: `series = struct.new(:string) { def slices(n) = string.each_char.each_cons(n).map(&:join) if n > string.length }` in ruby

The code you provided has a syntax error. The correct syntax for defining a method in Ruby is by using the def keyword, followed by the name of the method and the code block. Here's the corrected code:

main.rb
series = Struct.new(:string) do
  def slices(n)
    string.each_char.each_cons(n).map(&:join) if n > string.length
  end
end
125 chars
6 lines

This code defines a new Struct object called series, with a single attribute string. It then defines a slices method that takes an argument n. The method uses each_char to iterate over each character in the string, each_cons(n) to get each consecutive slice of length n, and map(&:join) to join the individual characters into strings. The resulting slices are returned if the length of n is greater than the length of the string.

Note that you need to ensure the code is placed correctly in your program and is being executed in an appropriate context.