Erlang Mapping get Method

Erlang Mapping

This method is used to get the value of a specific key in the map.

Syntax

get(key,map)

Parameter

• key −This is the key for which the return value is needed.

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

Return Value

If the key is found on 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:get("a",Map1)]).

Output Result

The output of the above program is as follows.

1

Erlang Mapping