Erlang Programming/Using lists

=Using lists=

foreach
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 numbers
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]

sort
lists:sort( A ) is what you think.

6> lists:sort([1,3,2,6,5,4]). [1,2,3,4,5,6] 7> lists:sort([a,d,b,c]). [a,b,c,d] 8> lists:sort([f,e,a,"d","c",{b}]). [a,e,f,{b},"c","d"]