Custom Enumerable Project

This project consists in recreating Ruby's enumerable methods.

In order to improve the coding style, use of the 'each' method was prefered over the use of for loops, though (except for the custom 'each' method, of course).

Project instructions from 'The Odin Project':

Installation

First, clone this repository with

git clone git@github.com:TheOdinProject/custom_enumerable_project.git

Then, navigate into the folder through your command line with

cd custom_enumerable_project

and install the dependencies using the command

bundle install

Getting Started

You will add new methods to the Enumerable module in lib/my_enumerables.rb. Before you implement a method, go to the corresponding spec file and watch the test fail by running

bundle exec rspec <spec_file>

You can find the associated spec file in the methods section. Then, add the method to the enumerable module. Run the tests again using the same command until they pass.

Example

As an example, before you start implementing the my_each method, run

bundle exec rspec spec/my_each_spec.rb

to see that the test fails as expected.

Once you implement it, like so:

# lib/my_enumerables.rb

class Array
  def my_each
    # Complete code
  end
end

run the command

bundle exec rspec spec/my_each_spec.rb

again to see if your code is correct or not.

Methods

The following table has the methods you will need to implement along with their associated specs, as outlined in the project instructions.

Method Spec File Notes
Array#my_each spec/my_each_spec.rb You will define my_each on the Array class in lib/my_enumerables.rb
Enumerable#my_each_with_index spec/my_each_with_index_spec.rb
Enumerable#my_select spec/my_select_spec.rb
Enumerable#my_all? spec/my_all_spec.rb
Enumerable#my_any? spec/my_any_spec.rb
Enumerable#my_none? spec/my_none_spec.rb
Enumerable#my_count spec/my_count_spec.rb
Enumerable#my_map spec/my_map_spec.rb
Enumerable#my_inject spec/my_inject_spec.rb