Erlang - is_atom

This method is used to determine if a term is indeed an atom.

Syntax

is_atom(term)

Parameters

• term − This is the term value which needs to be evaluated as to whether it is an atom or not.

Return Value

True, if the term value is an atom or else false will be returned.

For example

-module(helloworld). 
-export([start/0]). 

start() -> 
   io:fwrite(atom1), 
   io:fwrite("~n"), 
   io:fwrite("~p~n",[is_atom(atom1)]).

Output

The output of the above program is as follows.

atom1
true