if

See "Implementing if in Ruby" 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.

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

Usage

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.