Erlang Map remove method

Erlang Map

This method is used to remove the key-value from the map.

Syntax

remove(key,map)

Parameter

• key −This is the key that needs to be removed from the map.

• map −This is the map that needs to remove the key.

Return Value

Return the map with the deleted key

For example

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

Output Result

The output of the above program is as follows-

#{"b" =>　2,"c" =>　3}

Erlang Map