Uberscore
Born to make your Ruby blocks more concise.
# Chain method calls.
%w[0x 0d ea].map { |element| element.hex.divmod(13)[1] == 0 } # Without Uberscore
%w[0x 0d ea].map(&_.hex.divmod(13)[1] == 0) # With Uberscore
# Use class methods.
[Array, Hash].map { |a_class| a_class.new(4) }
[Array, Hash].map(&_.new(4))
# Nest.
[[2, 3]].map { |array| array.map { |element| element * 2 } }
[[2, 3]].map(&_.map(&_ * 2))
# Subscript.
[{ name: "foo" }, { name: "bar" }].map { |hash| hash[:name] }
[{ name: "foo" }, { name: "bar" }].map(&_[:name])Name Conflict
The method name _ conflicts with the last expression shortcut in Pry and IRB.
If you wish to name the method differently, define the constant UBERSCORE_METHOD_NAME
before requiring the gem.
UBERSCORE_METHOD_NAME = :it # or any other name.
require "uberscore"
[{ name: "foo" }, { name: "bar" }].map(&it[:name])Installation
Add this line to your application's Gemfile:
gem 'uberscore'
And then execute:
$ bundle
Or install it yourself as:
$ gem install uberscore
License
MIT