Erlang Map put Method

Erlang Map

This method is used to add key-value pairs to the map.

Syntax

put(key1,value1,map1)

Parameter

• key1 −This is the key that needs to be added to the map.

• Value1 −This is the key1Associated values that need to be added to the map.

• map1 −This is the map that needs to add keys.

Return Value

Original map with added keys.

Online Example

-module(helloworld).　
-export([start/0]).　
start()　->　
　　　Lst1　= [{"a",1},{"b",2},{"c",3}],　
　　　Map1　= maps:from_list(Lst1,　
　　　io:fwrite("~p~n",[maps:put("d",4,Map1)).

Output Result

The output of the above program is as follows-

#{"a" =>　1,"b" =>　2,"c" =>　3,"d" =>　4}

Erlang Map