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The List is a structure used to store a collection of data items. In Erlang, Lists are created by enclosing the values in square brackets.
Following is a simple example of creating a list of numbers in Erlang.
Example
-module(helloworld).
-export([start/0]).
start() ->
Lst1 = [1,2,3],
io:fwrite("~w~n",[Lst1]).
The output of the above example will be −
Output
[1 2 3]
Let us now discuss the various methods available for Lists. Note that the lists library needs to be imported for these methods to work.
| Sr.No | Method and Description |
|---|---|
| 1 |
Returns true if Pred(Elem) returns true for all elements Elem in List, otherwise false. |
| 2 |
Returns true if Pred(Elem) returns true for at least one element Elem in List. |
| 3 |
Returns a new list List3 which is made from the elements of List1 followed by the elements of List2. |
| 4 |
Deletes an element from the list and returns a new list. |
| 5 |
Drops the last element of a List. |
| 6 |
Returns a list which contains N copies of the term Elem |
| 7 |
Returns the last element of the list |
| 8 |
Returns the element of the list which has the maximum value. |
| 9 |
Checks if an element is present in the list or not. |
| 10 |
Returns the element of the list which has the minimum value. |
| 11 |
Returns the sorted list formed by merging all the sub-lists of ListOfLists. |
| 12 |
Returns the Nth element of List. |
| 13 |
Returns the Nth tail of the List. |
| 14 |
Reverses a list of elements. |
| 15 |
Sorts a list of elements. |
| 16 |
Returns a sublist of elements. |
| 17 |
Returns the sum of elements in the list. |
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