LED_Blinking My first Arduino programming. #LED_blinking

My first Arduino programming code is below


int led =13;  //initialisation for led pin 13.
void setup() // the setup function runs once when you press reset or power the board.
{ 
pinMode(led,OUTPUT); 
} // initialize digital pin LED_BUILTIN as an output.
void loop() // the loop function runs over and over again forever.
{
digitalWrite(led,HIGH); // turn the LED on (HIGH is the voltage level) . 
delay(1000); // wait for a second.  
digitalWrite(led,LOW); // turn the LED off by making the voltage LOW.
delay(1000); //wait for a second.
}