https://github.com/mudge/if

Implementing if in Ruby without using keywords.
https://github.com/mudge/if

Last synced: 8 months ago
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Implementing if in Ruby without using keywords.

• Host: GitHub
• URL: https://github.com/mudge/if
• Owner: mudge
• License: mit
• Created: 2012-07-09T21:43:04.000Z (almost 14 years ago)
• Default Branch: master
• Last Pushed: 2015-03-15T13:08:47.000Z (over 11 years ago)
• Last Synced: 2025-10-25T08:39:04.404Z (8 months ago)
• Language: Ruby
• Homepage: http://mudge.github.com/2012/07/09/implementing-if-in-ruby.html
• Size: 145 KB
• Stars: 6
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# if [![Build Status](https://secure.travis-ci.org/mudge/if.png?branch=master)](http://travis-ci.org/mudge/if)

See "[Implementing `if` in Ruby](http://mudge.github.com/2012/07/09/implementing-if-in-ruby.html)" for more information.

## Requirements

This library is tested on Ruby 1.8.7 and later but benefits from Ruby 1.9's

hash and lambda literal syntax.

```ruby

"truthy".if -> { "I'm true!" }, else: -> { "I'm false!" }

# vs.

"truthy".if proc { "I'm true!" }, :else => proc { "I'm false!" }

```

## Usage

```ruby

require "if"

"Some truthy object".if -> { "I'm true!" }, else: -> { "I'm false!" }

#=> "I'm true!"

nil.if -> { "I'm true!" }, else: -> { "I'm false!" }

#=> "I'm false!"

# Or, if you only care about side-effects and not return value:

"Some truthy object"

  .if_true { puts "I'm true!" }

  .if_false { puts "I'm false!" }

# "I'm true!"

#=> "Some truthy object"

nil

  .if_true { puts "I'm true!" }

  .if_false { puts "I'm false!" }

# "I'm false!"

#=> nil

```

## License

Copyright © 2015 Paul Mucur

Distributed under the MIT License.