Rack Nested Params Parsing Quiz

answers.rb

# See https://github.com/rack/rack/blob/master/test/spec_utils.rb
# and http://www.ruby-forum.com/topic/215584
# for further details and historical explanation

"x[y][z]=1" # => {"x" => {"y" => {"z" => "1"}}}

"x[y][z][]=1" # => {"x" => {"y" => {"z" => ["1"]}}}

"x[y][z]=1&x[y][z]=2" # => {"x" => {"y" => {"z" => "2"}}}

"x[y][z][]=1&x[y][z][]=2" # => {"x" => {"y" => {"z" => ["1", "2"]}}}

"x[y][][z]=1" # => {"x" => {"y" => [{"z" => "1"}]}}

"x[y][][z][]=1" # => {"x" => {"y" => [{"z" => ["1"]}]}}

"x[y][][z]=1&x[y][][w]=2" # => {"x" => {"y" => [{"z" => "1", "w" => "2"}]}}

"x[y][][v][w]=1" # => {"x" => {"y" => [{"v" => {"w" => "1"}}]}}

"x[y][][z]=1&x[y][][v][w]=2" # => {"x" => {"y" => [{"z" => "1", "v" => {"w" => "2"}}]}}

"x[y][][z]=1&x[y][][z]=2" # => {"x" => {"y" => [{"z" => "1"}, {"z" => "2"}]}}

"x[y][][z]=1&x[y][][w]=a&x[y][][z]=2&x[y][][w]=3" # => {"x" => {"y" => [{"z" => "1", "w" => "a"}, {"z" => "2", "w" => "3"}]}}

questions.rb

"x[y][z]=1" # => {"x" => {"y" => {"z" => "1"}}}

"x[y][z][]=1" # =>

"x[y][z]=1&x[y][z]=2" # =>

"x[y][z][]=1&x[y][z][]=2" # =>

"x[y][][z]=1" # =>

"x[y][][z][]=1" # =>

"x[y][][z]=1&x[y][][w]=2" # =>

"x[y][][v][w]=1" # =>

"x[y][][z]=1&x[y][][v][w]=2" # =>

"x[y][][z]=1&x[y][][z]=2" # =>

"x[y][][z]=1&x[y][][w]=a&x[y][][z]=2&x[y][][w]=3" # =>