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NaturalNumberString

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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

© sanemat

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

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Check the string is a natural number.

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