Erlang Map Merge Method

Erlang Map

This method is used to merge2a map.

Syntax

merge(map1,map2)

Parameter

• map1 −This is the first map that needs to be merged.

• map2 −This is the second map, which needs to be merged with the first map.

Return Value

a map, which is a map1and map2of merge.

-module(helloworld).　
-export([start/0]).　
start()　->
　　　Lst1　= [{"a",1},{"b",2},{"c",3}],　
　　　Lst2　= [{"d",4},{"e",5},{"f",6}],　
　　　
　　　Map1　= maps:from_list(Lst1,　
　　　Map2　= maps:from_list(Lst2,　
　　　io:fwrite("~p~n",[maps:merge(Map1,Map2]).

Output Result

The output of the above program is as follows.

#{"a" =>　1,"b" =>　2,"c" =>　3,"d" =>　4,"e" =>　5,"f" =>　6}

Erlang Map