https://github.com/johansenja/weakest_link
Continuous safe-navigation operator chaining in Ruby, without the repetition
https://github.com/johansenja/weakest_link
chaining method-chaining ruby ruby-gem ruby-on-rails safe-navigation
Last synced: about 1 month ago
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Continuous safe-navigation operator chaining in Ruby, without the repetition
- Host: GitHub
- URL: https://github.com/johansenja/weakest_link
- Owner: johansenja
- License: mit
- Created: 2021-06-14T10:27:22.000Z (almost 4 years ago)
- Default Branch: master
- Last Pushed: 2021-06-14T10:28:06.000Z (almost 4 years ago)
- Last Synced: 2025-04-30T06:08:11.217Z (about 1 month ago)
- Topics: chaining, method-chaining, ruby, ruby-gem, ruby-on-rails, safe-navigation
- Language: Ruby
- Homepage:
- Size: 3.91 KB
- Stars: 2
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE.txt
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README
# WeakestLink
Weakest link is a very lightweight gem which allows you to safely chain multiple methods together, without having to
repeat the safe navigation operator for each call.
### Example
#### Standard ruby
```ruby
my_array = rand > 0.5 ? [] : ['foo']
my_array.first&.length&.split&.join(" ")&.reverse # etc
```
#### Weakest Link
```ruby
require 'weakest_link'
my_array = rand > 0.5 ? [] : ['foo']
# start and end the sequence of safe calls with :£
my_array.£.first.length.split.join(" ").reverse.£ # etc
```
If `£` is not a convenient character, or you would prefer something else, you can also configure other aliases:
```ruby
WeakestLink.aliases = %i[€ foo]
my_array.€.first.length.split.join(" ").reverse.€ # etc
my_array.foo.first.length.split.join(" ").reverse.foo # etc
```
## Installation
Add this line to your application's Gemfile:
```ruby
gem 'weakest_link'
```
And then execute:
$ bundle install
Or install it yourself as:
$ gem install weakest_link
## Development
After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` 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 the created tag, and push the `.gem` file to [rubygems.org](https://rubygems.org).
## Contributing
Bug reports and pull requests are welcome on GitHub at https://github.com/johansenja/weakest_link.
## License
The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).