LED "pulse" instead of "blink"

Projects Programming
3 
 if (currentMillis - previousMillis >= interval) {
    previousMillis = currentMillis;
    if (ledState == LOW) {
      ledState = HIGH;
    } else {
      ledState = LOW;
    }
    digitalWrite(ledPin, ledState);
  }

When you change the state of the LED, you can change the value of "interval" too