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In this guide, we will discuss Erlang is_binary. This method is used to check if a bitstring is indeed a binary value.

Syntax

is_binary(bitstring)

Parameters

• bitstring − This is bitstring which needs to be checked as to whether it’s a binary or not.

Return Value

Returns true if the bitstring is a binary value, else returns false.

For example

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

start() -> 
   io:fwrite("~p~n",[is_binary(<<1,2,3>>)]).

Output

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

true

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