EachWith

The EachWith gems adds some minor helper methods to array iteration.

I find I often need to indicate if I'm on the last element of an array, which would normally look like:

some_array = [1,2,3]
some_array.each_with_index do |element, index|
  if index == some_array.length - 1
    # special case for the last element
  end
  # Rest of code
end

Using this gem you can simply do the following:

some_array = [1,2,3]
some_array.each_indicate_last do |element, is_last|
  if is_last
    # this is the last element
  end
  # Rest of code
end

Installation

Add this line to your application's Gemfile:

gem 'each_with'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install each_with

Usage

The gem currently adds 3 methods to Array objects.

• each_indicate_last
• each_indicate_first
• each_indicate_nth

Example usage:

require 'each_with'

some_array = [1,2,3]
some_array.each_indicate_last do |element, is_last|
  if is_last
    # this is the last element
  end
  # Rest of code
end

some_array.each_indicate_first do |element, is_first|
  if is_first
    # this is the first element
  end
  # Rest of code
end

some_array = ["foo","bar","baz"]
some_array.each_indicate_nth(1) do |element, is_nth|
  if is_nth
    # this is the nth element
    # (NOTE: this is base 0, so is_nth would be true when element == "bar")
  end
  # Rest of code
end

Development

After cloning this repo just do a bundle install & have at it - if you add new behavior please add specs.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/prodion23/each_with. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

License

The gem is available as open source under the terms of the MIT License.

Code of Conduct

Everyone interacting in the EachWith project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.