[RUBY] [For those who create portfolios] Reduce mistakes and make the code easier to read -Rubocop Airbnb-

What is Rubocop Airbnb?

It is a library that checks whether the written code complies with the coding standards. Rubocop is famous as a parsing tool, but since there are various settings, this time we will introduce rubocop-airbnb customized for the development site.

Introduction

install gem

`Gemfile`


 group :development, :test do
   gem 'rubocop-airbnb'
 end

 $ bundle install

File creation

Create new .rubocop.yml and .rubocop_airbnb.yml in the same directory as the Gemfile.

`ruby:.rubocop.yml`


inherit_from:
  - .rubocop_airbnb.yml

AllCops:
  Exclude:
  - 'bin/*'
  - 'config/**/*'
  - 'db/**/*'
  - 'spec/spec_helper.rb'

`ruby:.rubocop_airbnb.yml`


require:
   - rubocop-airbnb

If you get an error when calling, please be careful because you may have forgotten to add "." Or "_" in this file or you may have made a typo.

Run rubocop

$ rubocop --require rubocop-airbnb

Automatic correction method

$ rubocop --require rubocop-airbnb -a

Summary

It will be harder to fix later, so please try to introduce it before you start writing code.

reference

https://github.com/airbnb/ruby/tree/master/rubocop-airbnb