Erlang String str Method

Erlang String

This method returns the index position of a substring in a string.

Syntax

str(str1,str2)

Parameter

• str1 −This is the string that needs to be searched.

• Chr1 −This is the character that needs to be searched in the string.

Return Value

Return the index position of a character in a string.

-module(helloworld).　
-import(string,[str/2]).　
-export([start/　
start()　->　
Str1　= "hello World",　
Index1　= str(Str1,"hello"),　
io:fwrite("~p~n",[Index1]).

When we run the above program, we will get the following result.

1

Erlang String