Last modified on 23 January 2013, at 20:46

Erlang Programming/Using lists

Using listsEdit

foreachEdit

3> lists:foreach( fun(X)->X*X end, [1,2,3]).
>

produces no output because the purpose of foreach is to generate side-effects. However,

4> lists:foreach( fun(X)->io:format("~w ",[X]) end, [1,2,3,4]).
1 2 3 4

does work, because io:format() is a side effect function.

sequence of numbersEdit

lists:seq(1,100) is like range(1,101) in python.

5> lists:seq(1,10).
[1,2,3,4,5,6,7,8,9,10]

sortEdit

lists:sort( A ) is what you think.