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In this guide, we will discuss Erlang duplicate. Returns a list which contains N copies of the term Elem.

Syntax

duplicate(N,Elem)

Parameters

• N − The number of times the element needs to be duplicated in the list.
• Elem − The element which needs to be duplicated in the list.

Return Value

Returns a new list with the Element duplicated N times.

For example

-module(helloworld). 
-import(lists,[duplicate/2]). 
-export([start/0]). 

start() -> 
   Lst1 = duplicate(5,1), 
   io:fwrite("~w~n",[Lst1]).

Output

When we run the above program we will get the following result.

[1,1,1,1,1]

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