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0 pointsrvirding10y ago0 comments

Yes, there are list comprehensions but they return the list of values:

(lc ((<- x (lists:seq 1 10))) (lfe_io:format "~p" x))

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Thank you both. I didn't realize how Erlang flawored this really is. This did the trick:

    > (lists:map (lambda (a) (io:format (integer_to_list a))) (lists:seq 1 10))

Though all those OKs look kind of superfluous. I must read Erlang tutorial or two before I proceed.

io:format is a side-effecting function. It prints to the terminal. The atom ok is the return value.

If you want to create a list of strings, this works:

    > (lists:map (lambda (a) (lists:flatten (io_lib:format "~B" (list a)))) (lists:seq 1 10)).
    ("1" "2" "3" "4" "5" "6" "7" "8" "9" "10")

j / k navigate · click thread line to collapse

Thank you both. I didn't realize how Erlang flawored this really is. This did the trick:

    > (lists:map (lambda (a) (io:format (integer_to_list a))) (lists:seq 1 10))

Though all those OKs look kind of superfluous. I must read Erlang tutorial or two before I proceed.

io:format is a side-effecting function. It prints to the terminal. The atom ok is the return value.

If you want to create a list of strings, this works:

    > (lists:map (lambda (a) (lists:flatten (io_lib:format "~B" (list a)))) (lists:seq 1 10)).
    ("1" "2" "3" "4" "5" "6" "7" "8" "9" "10")

j / k navigate · click thread line to collapse