A Julia Dictionary to translate US States to Two letter codes and vice versa

us_state_abbrev.jl

# This Gist is based on https://gist.github.com/rogerallen/1583593 by Roger Allen
#
# United States of America Julia Dictionary to translate States,
# Districts & Territories to Two-Letter codes and vice versa.
#
# https://gist.github.com/hongtaoh/69b607623d39341466bca33ba7fd9ab0
#
# Dedicated to the public domain.  To the extent possible under law,
# Hongtao Hao has waived all copyright and related or neighboring
# rights to this code.

# If you want to preserve the order of input, replace "Dict" with "OrderedDict"
# To do that, run `using DataStructures` before creating the dictionary
# If you haven't installed DataStuctures.jl, run `import Pkg; Pkg.add("DataStructures")`
#
# The following codes were tested under Julia v1.6.1
#

us_state_abbrev = Dict(
    "Alabama"=> "AL",
    "Alaska"=> "AK",
    "American Samoa"=> "AS",
    "Arizona"=> "AZ",
    "Arkansas"=> "AR",
    "California"=> "CA",
    "Colorado"=> "CO",
    "Connecticut"=> "CT",
    "Delaware"=> "DE",
    "District of Columbia"=> "DC",
    "Florida"=> "FL",
    "Georgia"=> "GA",
    "Guam"=> "GU",
    "Hawaii"=> "HI",
    "Idaho"=> "ID",
    "Illinois"=> "IL",
    "Indiana"=> "IN",
    "Iowa"=> "IA",
    "Kansas"=> "KS",
    "Kentucky"=> "KY",
    "Louisiana"=> "LA",
    "Maine"=> "ME",
    "Maryland"=> "MD",
    "Massachusetts"=> "MA",
    "Michigan"=> "MI",
    "Minnesota"=> "MN",
    "Mississippi"=> "MS",
    "Missouri"=> "MO",
    "Montana"=> "MT",
    "Nebraska"=> "NE",
    "Nevada"=> "NV",
    "New Hampshire"=> "NH",
    "New Jersey"=> "NJ",
    "New Mexico"=> "NM",
    "New York"=> "NY",
    "North Carolina"=> "NC",
    "North Dakota"=> "ND",
    "Northern Mariana Islands"=>"MP",
    "Ohio"=> "OH",
    "Oklahoma"=> "OK",
    "Oregon"=> "OR",
    "Pennsylvania"=> "PA",
    "Puerto Rico"=> "PR",
    "Rhode Island"=> "RI",
    "South Carolina"=> "SC",
    "South Dakota"=> "SD",
    "Tennessee"=> "TN",
    "Texas"=> "TX",
    "Utah"=> "UT",
    "Vermont"=> "VT",
    "Virgin Islands"=> "VI",
    "Virginia"=> "VA",
    "Washington"=> "WA",
    "West Virginia"=> "WV",
    "Wisconsin"=> "WI",
    "Wyoming"=> "WY"
)

us_state_abbrev_reverse = Dict()

for (k, v) in us_state_abbrev
    us_state_abbrev_reverse[v] = k
end

# inspired by https://www.matthewemery.ca/post/julia-for-pythonistas/, by Matthew Emery
name_to_code = x -> us_state_abbrev[x]
code_to_name = x -> us_state_abbrev_reverse[x]

name_to_code("Alaska")
# returns "AK"

code_to_name("AK")
# returns "Alaska"