Marahin

#!/usr/bin/env ruby

class FFMPEG
  def self.generate_filter
    scale_segment = ''
    ingredients.each_with_index do |_, i|
      scale_segment += "[#{i}:v]scale=1920:1080:force_original_aspect_ratio=1[v#{i}];"
    end

    output_segment = ''

Marahin

Update(
  Select(
    "ref", 
    Get(
      Match(
        Index("title_unique"),
        "TITLE HERE "
      )
    )
  ),

Marahin

#!/usr/bin/ruby

DATA.each_line do |line|
  puts line
end

__END__
Doom
Quake
Diablo

Marahin

-*/name_of_dir/*

e.g.

-*/app/*,-*/.bundler/*

Marahin

["john", "alice", "philip"]
=> ["john", "alice", "philip"]
arr.map!(&:freeze).freeze
=> ["john", "alice", "philip"]
arr.map(&:downcase!)
FrozenError: can't modify frozen String
from (pry):3:in `downcase!'
arr.map!(&:downcase)
FrozenError: can't modify frozen Array
from (pry):4:in `map!'

Marahin

arr = ["john", "alice", "philip"]
=> ["john", "alice", "philip"]
arr.map!(&:upcase) # works, array not frozen
=> ["JOHN", "ALICE", "PHILIP"]
arr
=> ["JOHN", "ALICE", "PHILIP"]
arr.freeze
=> ["JOHN", "ALICE", "PHILIP"]
arr.map!(&:downcase) # doesnt work, array is frozen
FrozenError: can't modify frozen Array

Marahin

def fridge_1_contents
  @fridge_1_contents ||= [1].freeze
end

def fridge_2_contents
  @frigde_2_contents ||= [2].freeze
end

fridge_3_contents = fridge_1_contents + fridge_2_contents
=> [1, 2]

Marahin

def set_of_elements_1
  [1].freeze
end

def set_of_elements_2
  [2].freeze
end

set_of_elements_3 = set_of_elements_1 + set_of_elements_2

Marahin

[1] pry(main)> A = [1].freeze
=> [1]
[2] pry(main)> A << 2
FrozenError: can't modify frozen Array
from (pry):2:in `__pry__'

Marahin

[1] pry(main)> A = [1]
=> [1]
[2] pry(main)> A.object_id
=> 70348956801400
[3] pry(main)> A << 2
=> [1, 2]
[4] pry(main)> A
=> [1, 2]
[5] pry(main)> A.object_id
=> 70348956801400