Self-describing numbers: Difference between revisions

=={{header|Julia}}==

<lang julia>julia> function selfie(x)

y = string(x)

return all([string(i[2]) == string(mapreduce(x->string(x)==string(i[1]-1),+,y)) for i in enumerate(y)])

end

# method added to generic function selfie

julia> selfie(2020)

true

julia> selfie(2021)

false</lang>