Arduino beginner guide connecting LED with Arduino nano

Code:
void setup() {
// put your setup code here, to run once:
pinMode(13, OUTPUT); // Set pin 13 as output
}

void loop() {
// put your main code here, to run repeatedly:
digitalWrite(13, HIGH); // Turn LED on
delay(1000); //Wait 1 second
digitalWrite(13, LOW); //Turn LED off
delay(1000); //wAIT 1 SECOND
}

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