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Alchemist

Doing conversions for you so you don’t have to google them and making code more readable.

Having code that looks like this is meaningless

miles = 8 * 1609.344

You could add comments

miles = 8 * 1609.344 # converting meters to miles

But why not have this!

8.meters.to.miles

You can even perform mathematical operations

10.kilometers + 1.mile # 11.609344 kilometers

Installation

gem sources -a http://gemcutter.org
sudo gem install alchemist

Usage

require 'rubygems'
require 'alchemist'	

Or if you’re using rails

config.gem 'alchemist', :source => 'http://gemcutter.org'

Alchemist has conversions for:

Distance

  • metres or meters
  • fermis
  • microns
  • chains
  • inches
  • microinches
  • mils
  • rods
  • leagues
  • feet
  • yards
  • miles
  • astronomical_units
  • light_years
  • parsecs
  • nautical_miles
  • admirality_miles
  • fathoms
  • cable_lengths
  • angstroms
  • picas
  • printer_picas
  • points
  • printer_points

Mass

  • grams or grammes
  • carats
  • ounces
  • pennyweights
  • pounds
  • troy_pounds or apothecary_pounds
  • slugs
  • assay_tons
  • metric_tons
  • tons or short_tons

Volume

  • litres or liters
  • barrels
  • bushels
  • cubic_meters
  • cups
  • imperial_fluid_ounces
  • fluid_ounces
  • imperial_gallons
  • gallons
  • imperial_gills
  • gills
  • pints
  • liquid_pints
  • quarts
  • liquid_quarts
  • tablespoons
  • teaspoons

And many more checkout lib/alchemist.rb for the rest

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