NaturalNumberString

Check the value is string of natural number.

Usage

require 'natural_number_string'

# Use include
class Example
  include NaturalNumberString
  def example
    positive_integer_string?('1') #=> true
    positive_integer_string?('100000000000000') #=> true

    positive_integer_string?(nil) #=> false
    positive_integer_string?('') #=> false
    positive_integer_string?(1) #=> false
    positive_integer_string?('1.1') #=> false
    positive_integer_string?('-1') #=> false
    positive_integer_string?('0') #=> false
  end
end

# Use direct
NaturalNumberString.positive_integer_string?('1') #=> true
NaturalNumberString.positive_integer_string?('100000000000') #=> true

NaturalNumberString.positive_integer_string?(nil) #=> false
NaturalNumberString.positive_integer_string?('') #=> false
NaturalNumberString.positive_integer_string?(1) #=> false
NaturalNumberString.positive_integer_string?('1.1') #=> false
NaturalNumberString.positive_integer_string?('-1') #=> false
NaturalNumberString.positive_integer_string?('0') #=> false

API

NaturalNumberString.positive_integer_string?(value) -> boolean

value

Required

Any Object.

NaturalNumberString.zero_or_positive_integer_string?(value) -> boolean

value

Required

Any Object.

And more details.

Changelog

changelog.md.

Installation

Add this line to your application's Gemfile:

gem 'natural_number_string'

And then execute:

$ bundle

Or install it yourself as:

$ gem install natural_number_string

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

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

License

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