ruby_sucks.rb

# two keyword args
def method_with_keyword_args(name:, greeting:)
  puts "#{greeting} #{name}"
end

# these are the same thing, note how position doesn't matter
method_with_keyword_args(name: "Phil", greeting: "Hello!")
method_with_keyword_args(greeting: "Hello!", name: "Phil")

# one hash arg, opts is just a common variable name for a hash (options or optional hash depending on who you ask)
def method_with_hash_arg(opts)
  puts "#{opts[:greeting]} #{opts[:name]}"
end

# these are the same thing, the curlies are optional, notice how it looks IDENTICAL to the keyword calling syntax
method_with_hash_arg({ name: "Phil", greeting: "Hello!" })
method_with_hash_arg(name: "Phil", greeting: "Hello!")

# two arguments, postion matters
def method_with_positional_args(name, greeting)
  puts "#{greeting} #{name}"
end

method_with_positional_args("Phil", "Hello!")