Erlang Map find Method

Erlang Map

This method is used to check if a specific key exists in the map.

Syntax

find(key,map)

Parameter

• key −This is the list that needs to be converted to a map.

• map −This is the map in which the key needs to be searched.

Return Value

If a key is found in the map, return the value.

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

Output Result

The output of the above program is as follows.

{ok,1}

Erlang Map