[erlang-questions] How to keep adding items to a data structure

[Antonios Kouzoupis]

Hi Don,

The way you iterate in Erlang and I guess in most functional programming
languages is by recursive call. So if you want to add/append some
numbers to a list, one way to go is the following:

populate(Num) ->
    populate(Num, []).

populate(0, Acc) ->
    Acc;
populate(Num, Acc) ->
    populate(Num - 1, [Num | Acc]).


Now if you call populate(100), you'll get the list [1,...,100]

BR,

-- 
Αντώνης Κουζούπης
Antonios Kouzoupis


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