Today I came across the Symbol type, but I don’t understand what it’s for. The online documenation offers these two examples:
julia> :name
:name
julia> typeof(:name)
Symbol
julia> x = 42
42
julia> eval(:x)
42
and when I search the help menu in the REPL I see these two examples:
julia> Symbol("my", "name")
:myname
julia> Symbol("day", 4)
:day4
All of the examples above show syntax, but it’s unclear when any of the cases above might be useful for anything.
When might anyone ever use :myname or :day4 or eval(:x)?