Dictionaries in Julia

What comprise Dictionaries?

• Keys
• Values

Example codes

eng2kor=Dict(
    "one"=>"일",
    "two"=>"이",
    "three"=>"삼",
    "four"=>"사"    
)

function histogram(s)
    d = Dict()
    for c in s
        if c ∉ keys(d)
            d[c] = 1
        else
            d[c] += 1
        end
    end
    d
end

Output:

Dict{Any, Any} with 3 entries:
  '보… => 2
  '장… => 2
  '윤… => 2

Reference

https://benlauwens.github.io/ThinkJulia.jl/latest/book.html#_a_dictionary_is_a_mapping